exclude playwright tests from vitest

test: visual regression tests POC
2025-04-21 11:50:33 +02:00 · 2025-04-20 22:13:46 +02:00
625 changed files with 43355 additions and 89978 deletions
@@ -1,5 +1,3 @@
-MODE="development"
-
 VITE_APP_BACKEND_V2_GET_URL=https://json-dev.excalidraw.com/api/v2/
 VITE_APP_BACKEND_V2_POST_URL=https://json-dev.excalidraw.com/api/v2/post/

@@ -12,7 +10,7 @@ VITE_APP_WS_SERVER_URL=http://localhost:3002
 VITE_APP_PLUS_LP=https://plus.excalidraw.com
 VITE_APP_PLUS_APP=http://localhost:3000

-VITE_APP_AI_BACKEND=http://localhost:3016
+VITE_APP_AI_BACKEND=http://localhost:3015

 VITE_APP_FIREBASE_CONFIG='{"apiKey":"AIzaSyCMkxA60XIW8KbqMYL7edC4qT5l4qHX2h8","authDomain":"excalidraw-oss-dev.firebaseapp.com","projectId":"excalidraw-oss-dev","storageBucket":"excalidraw-oss-dev.appspot.com","messagingSenderId":"664559512677","appId":"1:664559512677:web:a385181f2928d328a7aa8c"}'

@@ -27,7 +25,7 @@ VITE_APP_ENABLE_TRACKING=true
 FAST_REFRESH=false

 # The port the run the dev server
-VITE_APP_PORT=3001
+VITE_APP_PORT=3000

 #Debug flags

@@ -1,5 +1,3 @@
-MODE="production"
-
 VITE_APP_BACKEND_V2_GET_URL=https://json.excalidraw.com/api/v2/
 VITE_APP_BACKEND_V2_POST_URL=https://json.excalidraw.com/api/v2/post/

@@ -32,33 +32,6 @@
        "name": "jotai",
        "message": "Do not import from \"jotai\" directly. Use our app-specific modules (\"editor-jotai\" or \"app-jotai\")."
      }
-    ],
-    "react/jsx-no-target-blank": [
-      "error",
-      {
-        "allowReferrer": true
-      }
    ]
-  },
-  "overrides": [
-    {
-      "files": ["packages/excalidraw/**/*.{ts,tsx}"],
-      "excludedFiles": ["packages/excalidraw/**/*.test.{ts,tsx}", "packages/excalidraw/**/*.test.*.{ts,tsx}"],
-      "rules": {
-        "@typescript-eslint/no-restricted-imports": [
-          "error",
-          {
-            "patterns": [
-              {
-                "group": ["@excalidraw/excalidraw"],
-                "message": "Do not import from the barrel 'index.tsx' files. Use direct relative imports to the specific module instead.",
-                "allowTypeImports": true
-              }
-            ],
-            "paths": [".", "..", "../..", "../../..", "../../../..", "../../../../..", "../index", "../../index", "../../../index", "../../../../index"]
-          }
-        ]
-      }
-    }
-  ]
+  }
 }
@@ -1,45 +0,0 @@
-# Project coding standards
-
-## Generic Communication Guidelines
-
- Be succint and be aware that expansive generative AI answers are costly and slow
- Avoid providing explanations, trying to teach unless asked for, your chat partner is an expert
- Stop apologising if corrected, just provide the correct information or code
- Prefer code unless asked for explanation
- Stop summarizing what you've changed after modifications unless asked for
-
-## TypeScript Guidelines
-
- Use TypeScript for all new code
- Where possible, prefer implementations without allocation
- When there is an option, opt for more performant solutions and trade RAM usage for less CPU cycles
- Prefer immutable data (const, readonly)
- Use optional chaining (?.) and nullish coalescing (??) operators
-
-## React Guidelines
-
- Use functional components with hooks
- Follow the React hooks rules (no conditional hooks)
- Keep components small and focused
- Use CSS modules for component styling
-
-## Naming Conventions
-
- Use PascalCase for component names, interfaces, and type aliases
- Use camelCase for variables, functions, and methods
- Use ALL_CAPS for constants
-
-## Error Handling
-
- Use try/catch blocks for async operations
- Implement proper error boundaries in React components
- Always log errors with contextual information
-
-## Testing
-
- Always attempt to fix #problems
- Always offer to run `yarn test:app` in the project root after modifications are complete and attempt fixing the issues reported
-
-## Types
-
- Always include `packages/math/src/types.ts` in the context when your write math related code and always use the Point type instead of { x, y}
@@ -12,10 +12,10 @@ jobs:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 2
-      - name: Setup Node.js
+      - name: Setup Node.js 18.x
        uses: actions/setup-node@v2
        with:
-          node-version: 20.x
+          node-version: 18.x
      - name: Set up publish access
        run: |
          npm config set //registry.npmjs.org/:_authToken ${NPM_TOKEN}
@@ -24,4 +24,4 @@ jobs:
      - name: Auto release
        run: |
          yarn add @actions/core -W
-          yarn release --tag=next --non-interactive
+          yarn autorelease
@@ -0,0 +1,55 @@
+name: Auto release excalidraw preview
+on:
+  issue_comment:
+    types: [created, edited]
+
+jobs:
+  Auto-release-excalidraw-preview:
+    name: Auto release preview
+    if: github.event.comment.body == '@excalibot trigger release' && github.event.issue.pull_request
+    runs-on: ubuntu-latest
+    steps:
+      - name: React to release comment
+        uses: peter-evans/create-or-update-comment@v1
+        with:
+          token: ${{ secrets.PUSH_TRANSLATIONS_COVERAGE_PAT }}
+          comment-id: ${{ github.event.comment.id }}
+          reactions: "+1"
+      - name: Get PR SHA
+        id: sha
+        uses: actions/github-script@v4
+        with:
+          result-encoding: string
+          script: |
+            const { owner, repo, number } = context.issue;
+            const pr = await github.pulls.get({
+              owner,
+              repo,
+              pull_number: number,
+            });
+            return pr.data.head.sha
+      - uses: actions/checkout@v2
+        with:
+          ref: ${{ steps.sha.outputs.result }}
+          fetch-depth: 2
+      - name: Setup Node.js 18.x
+        uses: actions/setup-node@v2
+        with:
+          node-version: 18.x
+      - name: Set up publish access
+        run: |
+          npm config set //registry.npmjs.org/:_authToken ${NPM_TOKEN}
+        env:
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+      - name: Auto release preview
+        id: "autorelease"
+        run: |
+          yarn add @actions/core -W
+          yarn autorelease preview ${{ github.event.issue.number }}
+      - name: Post comment post release
+        if: always()
+        uses: peter-evans/create-or-update-comment@v1
+        with:
+          token: ${{ secrets.PUSH_TRANSLATIONS_COVERAGE_PAT }}
+          issue-number: ${{ github.event.issue.number }}
+          body: "@${{ github.event.comment.user.login }} ${{ steps.autorelease.outputs.result }}"
@@ -11,7 +11,7 @@ jobs:
    runs-on: ubuntu-latest
    timeout-minutes: 3
    steps:
-      - uses: styfle/cancel-workflow-action@ce177499ccf9fd2aded3b0426c97e5434c2e8a73 # 0.6.0
+      - uses: styfle/cancel-workflow-action@0.6.0
        with:
          workflow_id: 400555, 400556, 905313, 1451724, 1710116, 3185001, 3438604
          access_token: ${{ secrets.GITHUB_TOKEN }}
@@ -9,10 +9,10 @@ jobs:
    steps:
      - uses: actions/checkout@v2

-      - name: Setup Node.js
+      - name: Setup Node.js 18.x
        uses: actions/setup-node@v2
        with:
-          node-version: 20.x
+          node-version: 18.x

      - name: Install and lint
        run: |
@@ -14,10 +14,10 @@ jobs:
        with:
          token: ${{ secrets.PUSH_TRANSLATIONS_COVERAGE_PAT }}

-      - name: Setup Node.js
+      - name: Setup Node.js 18.x
        uses: actions/setup-node@v2
        with:
-          node-version: 20.x
+          node-version: 18.x

      - name: Create report file
        run: |
@@ -40,7 +40,7 @@ jobs:
          echo ::set-output name=body::$body

      - name: Update description with coverage
-        uses: kt3k/update-pr-description@1b35a6dcd84d81aa0bc1889610efdcde7f37b0c0 # v1.0.1
+        uses: kt3k/update-pr-description@v1.0.1
        with:
          pr_body: ${{ steps.getCommentBody.outputs.body }}
          pr_title: "chore: Update translations from Crowdin"
@@ -13,18 +13,13 @@ jobs:
      - name: Checkout repository
        uses: actions/checkout@v3
      - name: Login to DockerHub
-        uses: docker/login-action@465a07811f14bebb1938fbed4728c6a1ff8901fc # v2
+        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@c7c53464625b32c7a7e944ae62b3e17d2b600130 # v3
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3
      - name: Build and push
-        uses: docker/build-push-action@ca052bb54ab0790a636c9b5f226502c73d547a25 # v5
+        uses: docker/build-push-action@v3
        with:
          context: .
          push: true
          tags: excalidraw/excalidraw:latest
-          platforms: linux/amd64, linux/arm64, linux/arm/v7
@@ -11,6 +11,6 @@ jobs:
  semantic:
    runs-on: ubuntu-latest
    steps:
-      - uses: amannn/action-semantic-pull-request@e32d7e603df1aa1ba07e981f2a23455dee596825 # v5
+      - uses: amannn/action-semantic-pull-request@v5
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
@@ -10,10 +10,10 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
-      - name: Setup Node.js
+      - name: Setup Node.js 18.x
        uses: actions/setup-node@v2
        with:
-          node-version: 20.x
+          node-version: 18.x
      - name: Install and build
        run: |
          yarn --frozen-lockfile
@@ -28,7 +28,7 @@ jobs:
          export SENTRY_RELEASE=$(sentry-cli releases propose-version)
          sentry-cli releases new $SENTRY_RELEASE --project $SENTRY_PROJECT
          sentry-cli releases set-commits --auto $SENTRY_RELEASE
-          sentry-cli sourcemaps upload --release $SENTRY_RELEASE --no-rewrite ./build/static/js/ --url-prefix "~/static/js"
+          sentry-cli releases files $SENTRY_RELEASE upload-sourcemaps --no-rewrite ./build/static/js/ --url-prefix "~/static/js"
          sentry-cli releases finalize $SENTRY_RELEASE
          sentry-cli releases deploys $SENTRY_RELEASE new -e production
        env:
@@ -11,16 +11,16 @@ jobs:
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3
-      - name: Setup Node.js
+      - name: Setup Node.js 18.x
        uses: actions/setup-node@v3
        with:
-          node-version: 20.x
+          node-version: 18.x
      - name: Install in packages/excalidraw
        run: yarn
        working-directory: packages/excalidraw
        env:
          CI: true
-      - uses: andresz1/size-limit-action@e7493a72a44b113341c0cf6186ab49c17c4b65c1 # v1
+      - uses: andresz1/size-limit-action@v1
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          build_script: build:esm
@@ -14,13 +14,13 @@ jobs:
      - name: "Install Node"
        uses: actions/setup-node@v2
        with:
-          node-version: "20.x"
+          node-version: "18.x"
      - name: "Install Deps"
        run: yarn install
      - name: "Test Coverage"
        run: yarn test:coverage
      - name: "Report Coverage"
        if: always() # Also generate the report if tests are failing
-        uses: davelosert/vitest-coverage-report-action@2500dafcee7dd64f85ab689c0b83798a8359770e # v2
+        uses: davelosert/vitest-coverage-report-action@v2
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
@@ -9,10 +9,10 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
-      - name: Setup Node.js
+      - name: Setup Node.js 18.x
        uses: actions/setup-node@v4
        with:
-          node-version: 20.x
+          node-version: 18.x
      - name: Install and test
        run: |
          yarn install
@@ -26,4 +26,9 @@ coverage
 dev-dist
 html
 meta*.json
-.claude
+
+# Playwright
+/test-results/
+/playwright-report/
+/blob-report/
+/playwright/.cache/
@@ -0,0 +1 @@
+18
@@ -1,34 +0,0 @@
-# CLAUDE.md
-
-## Project Structure
-
-Excalidraw is a **monorepo** with a clear separation between the core library and the application:
-
- **`packages/excalidraw/`** - Main React component library published to npm as `@excalidraw/excalidraw`
- **`excalidraw-app/`** - Full-featured web application (excalidraw.com) that uses the library
- **`packages/`** - Core packages: `@excalidraw/common`, `@excalidraw/element`, `@excalidraw/math`, `@excalidraw/utils`
- **`examples/`** - Integration examples (NextJS, browser script)
-
-## Development Workflow
-
-1. **Package Development**: Work in `packages/*` for editor features
-2. **App Development**: Work in `excalidraw-app/` for app-specific features
-3. **Testing**: Always run `yarn test:update` before committing
-4. **Type Safety**: Use `yarn test:typecheck` to verify TypeScript
-
-## Development Commands
-
-```bash
-yarn test:typecheck  # TypeScript type checking
-yarn test:update     # Run all tests (with snapshot updates)
-yarn fix             # Auto-fix formatting and linting issues
-```
-
-## Architecture Notes
-
-### Package System
-
- Uses Yarn workspaces for monorepo management
- Internal packages use path aliases (see `vitest.config.mts`)
- Build system uses esbuild for packages, Vite for the app
- TypeScript throughout with strict configuration
@@ -1,4 +1,4 @@
-FROM --platform=${BUILDPLATFORM} node:18 AS build
+FROM node:18 AS build

 WORKDIR /opt/node_app

@@ -6,14 +6,13 @@ COPY . .

 # do not ignore optional dependencies:
 # Error: Cannot find module @rollup/rollup-linux-x64-gnu
-RUN --mount=type=cache,target=/root/.cache/yarn \
-    npm_config_target_arch=${TARGETARCH} yarn --network-timeout 600000
+RUN yarn --network-timeout 600000

 ARG NODE_ENV=production

-RUN npm_config_target_arch=${TARGETARCH} yarn build:app:docker
+RUN yarn build:app:docker

-FROM --platform=${TARGETPLATFORM} nginx:1.27-alpine
+FROM nginx:1.27-alpine

 COPY --from=build /opt/node_app/excalidraw-app/build /usr/share/nginx/html

@@ -23,17 +23,20 @@
 <br />
 <p align="center">
  <a href="https://github.com/excalidraw/excalidraw/blob/master/LICENSE">
-    <img alt="Excalidraw is released under the MIT license." src="https://img.shields.io/badge/license-MIT-blue.svg"  /></a>
+    <img alt="Excalidraw is released under the MIT license." src="https://img.shields.io/badge/license-MIT-blue.svg"  />
+  </a>
  <a href="https://www.npmjs.com/package/@excalidraw/excalidraw">
-    <img alt="npm downloads/month" src="https://img.shields.io/npm/dm/@excalidraw/excalidraw"  /></a>
+    <img alt="npm downloads/month" src="https://img.shields.io/npm/dm/@excalidraw/excalidraw"  />
+  </a>
  <a href="https://docs.excalidraw.com/docs/introduction/contributing">
-    <img alt="PRs welcome!" src="https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat"  /></a>
+    <img alt="PRs welcome!" src="https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat"  />
+  </a>
  <a href="https://discord.gg/UexuTaE">
-    <img alt="Chat on Discord" src="https://img.shields.io/discord/723672430744174682?color=738ad6&label=Chat%20on%20Discord&logo=discord&logoColor=ffffff&widget=false"/></a>
-  <a href="https://deepwiki.com/excalidraw/excalidraw">
-    <img alt="Ask DeepWiki" src="https://deepwiki.com/badge.svg" /></a>
+    <img alt="Chat on Discord" src="https://img.shields.io/discord/723672430744174682?color=738ad6&label=Chat%20on%20Discord&logo=discord&logoColor=ffffff&widge=false"/>
+  </a>
  <a href="https://twitter.com/excalidraw">
-    <img alt="Follow Excalidraw on Twitter" src="https://img.shields.io/twitter/follow/excalidraw.svg?label=follow+@excalidraw&style=social&logo=twitter"/></a>
+    <img alt="Follow Excalidraw on Twitter" src="https://img.shields.io/twitter/follow/excalidraw.svg?label=follow+@excalidraw&style=social&logo=twitter"/>
+  </a>
 </p>

 <div align="center">
@@ -60,7 +63,7 @@ The Excalidraw editor (npm package) supports:
 - 🏗️&nbsp;Customizable.
 - 📷&nbsp;Image support.
 - 😀&nbsp;Shape libraries support.
- 🌐&nbsp;Localization (i18n) support.
+- 👅&nbsp;Localization (i18n) support.
 - 🖼️&nbsp;Export to PNG, SVG & clipboard.
 - 💾&nbsp;Open format - export drawings as an `.excalidraw` json file.
 - ⚒️&nbsp;Wide range of tools - rectangle, circle, diamond, arrow, line, free-draw, eraser...
@@ -9,7 +9,7 @@ You will need to import the `Footer` component from the package and wrap your co
 ```jsx live
 function App() {
  return (
-    <div style={{ height: "500px" }}>
+    <div style={{ height: "500px"}}>
      <Excalidraw>
        <Footer>
          <button
@@ -27,19 +27,19 @@ function App() {

 This will only work for `Desktop` devices.

-For `mobile` you will need to render it inside the [MainMenu](#mainmenu). You can use the [`useEditorInterface`](#useEditorInterface) hook to check the type of device, this will be available only inside the `children` of `Excalidraw` component.
+For `mobile` you will need to render it inside the [MainMenu](#mainmenu). You can use the [`useDevice`](#useDevice) hook to check the type of device, this will be available only inside the `children` of `Excalidraw` component.

 Open the `Menu` in the below playground and you will see the `custom footer` rendered.

 ```jsx live noInline
 const MobileFooter = ({}) => {
-  const editorInterface = useEditorInterface();
-  if (editorInterface.formFactor === "phone") {
+  const device = useDevice();
+  if (device.editor.isMobile) {
    return (
      <Footer>
        <button
          className="custom-footer"
-          style={{ marginLeft: "20px", height: "2rem" }}
+          style= {{ marginLeft: '20px', height: '2rem'}}
          onClick={() => alert("This is custom footer in mobile menu")}
        >
          custom footer
@@ -172,7 +172,7 @@ convertToExcalidrawElements([
    type: "arrow",
    x: 450,
    y: 20,
-    startArrowhead: "circle",
+    startArrowhead: "dot",
    endArrowhead: "triangle",
    strokeColor: "#1971c2",
    strokeWidth: 2,
@@ -363,7 +363,13 @@ This API has the below signature. It sets the `tool` passed in param as the acti
 ```ts
 (
  tool: (
-    | { type: ToolType }
+    | (
+        | { type: Exclude<ToolType, "image"> }
+        | {
+            type: Extract<ToolType, "image">;
+            insertOnCanvasDirectly?: boolean;
+          }
+      )
    | { type: "custom"; customType: string }
  ) & { locked?: boolean },
 ) => {};
@@ -371,7 +377,7 @@ This API has the below signature. It sets the `tool` passed in param as the acti

 | Name | Type | Default | Description |
 | --- | --- | --- | --- |
-| `type` | [ToolType](https://github.com/excalidraw/excalidraw/blob/master/packages/excalidraw/types.ts#L91) | `selection` | The tool type which should be set as active tool |
+| `type` | [ToolType](https://github.com/excalidraw/excalidraw/blob/master/packages/excalidraw/types.ts#L91) | `selection` | The tool type which should be set as active tool. When setting `image` as active tool, the insertion onto canvas when using image tool is disabled by default, so you can enable it by setting `insertOnCanvasDirectly` to `true` |
 | `locked` | `boolean` | `false` | Indicates whether the the active tool should be locked. It behaves the same way when using the `lock` tool in the editor interface |

 ## setCursor
@@ -292,7 +292,7 @@ viewportCoordsToSceneCoords(&#123; clientX: number, clientY: number },<br/>&nbsp
  appState: <a href="https://github.com/excalidraw/excalidraw/blob/master/packages/excalidraw/types.ts#L95">AppState</a><br/>): &#123;x: number, y: number}
 </pre>

-### useEditorInterface
+### useDevice

 This hook can be used to check the type of device which is being used. It can only be used inside the `children` of `Excalidraw` component.

@@ -300,8 +300,8 @@ Open the `main menu` in the below example to view the footer.

 ```jsx live noInline
 const MobileFooter = ({}) => {
-  const editorInterface = useEditorInterface();
-  if (editorInterface.formFactor === "phone") {
+  const device = useDevice();
+  if (device.editor.isMobile) {
    return (
      <Footer>
        <button
@@ -336,20 +336,12 @@ render(<App />);
 The `device` has the following `attributes`, some grouped into `viewport` and `editor` objects, per context.

 | Name | Type | Description |
-| ---- | ---- | ----------- |
-
-The `EditorInterface` object has the following properties:
-
-| Name | Type | Description |
-| --- | --- | --- | --- | --- | --- |
-| `formFactor` | `'phone' | 'tablet' | 'desktop'` | Indicates the device type based on screen size |
-| `desktopUIMode` | `'compact' | 'full'` | UI mode for desktop form factor |
-| `userAgent.raw` | `string` | Raw user agent string |
-| `userAgent.isMobileDevice` | `boolean` | True if device is mobile |
-| `userAgent.platform` | `'ios' | 'android' | 'other' | 'unknown'` | Device platform |
-| `isTouchScreen` | `boolean` | True if touch events are detected |
-| `canFitSidebar` | `boolean` | True if sidebar can fit in the viewport |
-| `isLandscape` | `boolean` | True if viewport is in landscape mode |
+| --- | --- | --- |
+| `viewport.isMobile` | `boolean` | Set to `true` when viewport is in `mobile` breakpoint |
+| `viewport.isLandscape` | `boolean` | Set to `true` when the viewport is in `landscape` mode |
+| `editor.canFitSidebar` | `boolean` | Set to `true` if there's enough space to fit the `sidebar` |
+| `editor.isMobile` | `boolean` | Set to `true` when editor container is in `mobile` breakpoint |
+| `isTouchScreen` | `boolean` | Set to `true` for `touch` when touch event detected |

 ### i18n

@@ -28,12 +28,32 @@ To start the example app using the `@excalidraw/excalidraw` package, follow the

 ## Releasing

+### Create a test release
+
+You can create a test release by posting the below comment in your pull request:
+
+```bash
+@excalibot trigger release
+```
+
+Once the version is released `@excalibot` will post a comment with the release version.
+
 ### Creating a production release

 To release the next stable version follow the below steps:

 ```bash
-yarn release --tag=latest --version=0.19.0
+yarn prerelease:excalidraw
 ```

-You will need to pass the `latest` tag with `version` for which you want to create the release. This will make the changes needed before publishing the packages into NPM, like updating dependencies of all `@excalidraw/*` packages, generating new entries in `CHANGELOG.md` and more.
+You need to pass the `version` for which you want to create the release. This will make the changes needed before making the release like updating `package.json`, `changelog` and more.
+
+The next step is to run the `release` script:
+
+```bash
+yarn release:excalidraw
+```
+
+This will publish the package.
+
+Right now there are two steps to create a production release but once this works fine these scripts will be combined and more automation will be done.
@@ -38,8 +38,6 @@ If you want to only import `Excalidraw` component you can do :point_down:

 ```jsx showLineNumbers
 import dynamic from "next/dynamic";
-import "@excalidraw/excalidraw/index.css";
-
 const Excalidraw = dynamic(
  async () => (await import("@excalidraw/excalidraw")).Excalidraw,
  {
@@ -97,8 +97,8 @@ const config = {
                href: "https://discord.gg/UexuTaE",
              },
              {
-                label: "𝕏",
-                href: "https://x.com/excalidraw",
+                label: "Twitter",
+                href: "https://twitter.com/excalidraw",
              },
              {
                label: "Linkedin",
@@ -33,7 +33,6 @@ const ExcalidrawScope = {
  initialData,
  useI18n: ExcalidrawComp.useI18n,
  convertToExcalidrawElements: ExcalidrawComp.convertToExcalidrawElements,
-  CaptureUpdateAction: ExcalidrawComp.CaptureUpdateAction,
 };

 export default ExcalidrawScope;
@@ -1,3 +1,5 @@
+version: "3.8"
+
 services:
  excalidraw:
    build:
@@ -3,8 +3,7 @@
  "version": "0.1.0",
  "private": true,
  "scripts": {
-    "build:packages": "yarn --cwd ../../ build:packages",
-    "build:workspace": "yarn build:packages && yarn copy:assets",
+    "build:workspace": "yarn workspace @excalidraw/excalidraw run build:esm && yarn copy:assets",
    "copy:assets": "cp -r ../../packages/excalidraw/dist/prod/fonts ./public",
    "dev": "yarn build:workspace && next dev -p 3005",
    "build": "yarn build:workspace && next build",
@@ -52,7 +52,7 @@
  transform: none;
 }

-.excalidraw .selected-shape-actions {
+.excalidraw .panelColumn {
  text-align: left;
 }

@@ -12,10 +12,10 @@ const MobileFooter = ({
  excalidrawAPI: ExcalidrawImperativeAPI;
  excalidrawLib: typeof TExcalidraw;
 }) => {
-  const { useEditorInterface, Footer } = excalidrawLib;
+  const { useDevice, Footer } = excalidrawLib;

-  const editorInterface = useEditorInterface();
-  if (editorInterface.formFactor === "phone") {
+  const device = useDevice();
+  if (device.editor.isMobile) {
    return (
      <Footer>
        <CustomFooter
@@ -1,4 +1,4 @@
-import type { ExcalidrawElementSkeleton } from "@excalidraw/excalidraw/element/transform";
+import type { ExcalidrawElementSkeleton } from "@excalidraw/excalidraw/data/transform";
 import type { FileId } from "@excalidraw/excalidraw/element/types";

 const elements: ExcalidrawElementSkeleton[] = [
@@ -3,20 +3,20 @@
  "version": "1.0.0",
  "private": true,
  "dependencies": {
-    "@excalidraw/excalidraw": "*",
-    "browser-fs-access": "0.38.0",
    "react": "19.0.0",
-    "react-dom": "19.0.0"
+    "react-dom": "19.0.0",
+    "@excalidraw/excalidraw": "*",
+    "browser-fs-access": "0.29.1"
  },
  "devDependencies": {
-    "typescript": "^5",
-    "vite": "5.0.12"
+    "vite": "5.0.12",
+    "typescript": "^5"
  },
  "scripts": {
    "start": "vite",
    "build": "vite build",
    "preview": "vite preview --port 5002",
    "build:preview": "yarn build && yarn preview",
-    "build:packages": "yarn --cwd ../../ build:packages"
+    "build:package": "yarn workspace @excalidraw/excalidraw run build:esm"
  }
 }
@@ -4,6 +4,8 @@ import { unstable_batchedUpdates } from "react-dom";

 type FILE_EXTENSION = Exclude<keyof typeof MIME_TYPES, "binary">;

+const INPUT_CHANGE_INTERVAL_MS = 500;
+
 export type ResolvablePromise<T> = Promise<T> & {
  resolve: [T] extends [undefined] ? (value?: T) => void : (value: T) => void;
  reject: (error: Error) => void;
@@ -52,6 +54,40 @@ export const fileOpen = <M extends boolean | undefined = false>(opts: {
    extensions,
    mimeTypes,
    multiple: opts.multiple ?? false,
+    legacySetup: (resolve, reject, input) => {
+      const scheduleRejection = debounce(reject, INPUT_CHANGE_INTERVAL_MS);
+      const focusHandler = () => {
+        checkForFile();
+        document.addEventListener("keyup", scheduleRejection);
+        document.addEventListener("pointerup", scheduleRejection);
+        scheduleRejection();
+      };
+      const checkForFile = () => {
+        // this hack might not work when expecting multiple files
+        if (input.files?.length) {
+          const ret = opts.multiple ? [...input.files] : input.files[0];
+          resolve(ret as RetType);
+        }
+      };
+      requestAnimationFrame(() => {
+        window.addEventListener("focus", focusHandler);
+      });
+      const interval = window.setInterval(() => {
+        checkForFile();
+      }, INPUT_CHANGE_INTERVAL_MS);
+      return (rejectPromise) => {
+        clearInterval(interval);
+        scheduleRejection.cancel();
+        window.removeEventListener("focus", focusHandler);
+        document.removeEventListener("keyup", scheduleRejection);
+        document.removeEventListener("pointerup", scheduleRejection);
+        if (rejectPromise) {
+          // so that something is shown in console if we need to debug this
+          console.warn("Opening the file was canceled (legacy-fs).");
+          rejectPromise(new Error("Request Aborted"));
+        }
+      };
+    },
  }) as Promise<RetType>;
 };

@@ -1,5 +1,5 @@
 {
  "outputDirectory": "dist",
  "installCommand": "yarn install",
-  "buildCommand": "yarn build:packages && yarn build"
+  "buildCommand": "yarn build:package && yarn build"
 }
@@ -4,9 +4,6 @@ import {
  TTDDialogTrigger,
  CaptureUpdateAction,
  reconcileElements,
-  useEditorInterface,
-  ExcalidrawAPIProvider,
-  useExcalidrawAPI,
 } from "@excalidraw/excalidraw";
 import { trackEvent } from "@excalidraw/excalidraw/analytics";
 import { getDefaultAppState } from "@excalidraw/excalidraw/appState";
@@ -23,6 +20,7 @@ import {
  APP_NAME,
  EVENT,
  THEME,
+  TITLE_TIMEOUT,
  VERSION_TIMEOUT,
  debounce,
  getVersion,
@@ -36,6 +34,7 @@ import {
 import polyfill from "@excalidraw/excalidraw/polyfill";
 import { useCallback, useEffect, useRef, useState } from "react";
 import { loadFromBlob } from "@excalidraw/excalidraw/data/blob";
+import { useCallbackRefState } from "@excalidraw/excalidraw/hooks/useCallbackRefState";
 import { t } from "@excalidraw/excalidraw/i18n";

 import {
@@ -48,14 +47,10 @@ import {
  share,
  youtubeIcon,
 } from "@excalidraw/excalidraw/components/icons";
-import { isElementLink } from "@excalidraw/element";
-import {
-  bumpElementVersions,
-  restoreAppState,
-  restoreElements,
-} from "@excalidraw/excalidraw/data/restore";
-import { newElementWith } from "@excalidraw/element";
-import { isInitializedImageElement } from "@excalidraw/element";
+import { isElementLink } from "@excalidraw/element/elementLink";
+import { restore, restoreAppState } from "@excalidraw/excalidraw/data/restore";
+import { newElementWith } from "@excalidraw/element/mutateElement";
+import { isInitializedImageElement } from "@excalidraw/element/typeChecks";
 import clsx from "clsx";
 import {
  parseLibraryTokensFromUrl,
@@ -75,7 +70,6 @@ import type {
  BinaryFiles,
  ExcalidrawInitialDataState,
  UIAppState,
-  ExcalidrawProps,
 } from "@excalidraw/excalidraw/types";
 import type { ResolutionType } from "@excalidraw/common/utility-types";
 import type { ResolvablePromise } from "@excalidraw/common/utils";
@@ -111,12 +105,11 @@ import { TopErrorBoundary } from "./components/TopErrorBoundary";
 import {
  exportToBackend,
  getCollaborationLinkData,
-  importFromBackend,
  isCollaborationLink,
+  loadScene,
 } from "./data";

 import { updateStaleImageStatuses } from "./data/FileManager";
-import { FileStatusStore } from "./data/fileStatusStore";
 import {
  importFromLocalStorage,
  importUsernameFromLocalStorage,
@@ -127,7 +120,6 @@ import {
  LibraryIndexedDBAdapter,
  LibraryLocalStorageMigrationAdapter,
  LocalData,
-  localStorageQuotaExceededAtom,
 } from "./data/LocalData";
 import { isBrowserStorageStateNewer } from "./data/tabSync";
 import { ShareDialog, shareDialogStateAtom } from "./share/ShareDialog";
@@ -145,9 +137,6 @@ import { ExcalidrawPlusIframeExport } from "./ExcalidrawPlusIframeExport";

 import "./index.scss";

-import { ExcalidrawPlusPromoBanner } from "./components/ExcalidrawPlusPromoBanner";
-import { AppSidebar } from "./components/AppSidebar";
-
 import type { CollabAPI } from "./collab/Collab";

 polyfill();
@@ -231,20 +220,9 @@ const initializeScene = async (opts: {

  const localDataState = importFromLocalStorage();

-  let scene: Omit<
-    RestoredDataState,
-    // we're not storing files in the scene database/localStorage, and instead
-    // fetch them async from a different store
-    "files"
-  > & {
+  let scene: RestoredDataState & {
    scrollToContent?: boolean;
-  } = {
-    elements: restoreElements(localDataState?.elements, null, {
-      repairBindings: true,
-      deleteInvisibleElements: true,
-    }),
-    appState: restoreAppState(localDataState?.appState, null),
-  };
+  } = await loadScene(null, null, localDataState);

  let roomLinkData = getCollaborationLinkData(window.location.href);
  const isExternalScene = !!(id || jsonBackendMatch || roomLinkData);
@@ -258,26 +236,11 @@ const initializeScene = async (opts: {
      (await openConfirmModal(shareableLinkConfirmDialog))
    ) {
      if (jsonBackendMatch) {
-        const imported = await importFromBackend(
+        scene = await loadScene(
          jsonBackendMatch[1],
          jsonBackendMatch[2],
+          localDataState,
        );
-
-        scene = {
-          elements: bumpElementVersions(
-            restoreElements(imported.elements, null, {
-              repairBindings: true,
-              deleteInvisibleElements: true,
-            }),
-            localDataState?.elements,
-          ),
-          appState: restoreAppState(
-            imported.appState,
-            // local appState when importing from backend to ensure we restore
-            // localStorage user settings which we do not persist on server.
-            localDataState?.appState,
-          ),
-        };
      }
      scene.scrollToContent = true;
      if (!roomLinkData) {
@@ -372,8 +335,6 @@ const initializeScene = async (opts: {
 };

 const ExcalidrawWrapper = () => {
-  const excalidrawAPI = useExcalidrawAPI();
-
  const [errorMessage, setErrorMessage] = useState("");
  const isCollabDisabled = isRunningInIframe();

@@ -381,8 +342,6 @@ const ExcalidrawWrapper = () => {

  const [langCode, setLangCode] = useAppLangCode();

-  const editorInterface = useEditorInterface();
-
  // initial state
  // ---------------------------------------------------------------------------

@@ -404,6 +363,9 @@ const ExcalidrawWrapper = () => {
    }, VERSION_TIMEOUT);
  }, []);

+  const [excalidrawAPI, excalidrawRefCallback] =
+    useCallbackRefState<ExcalidrawImperativeAPI>();
+
  const [, setShareDialogState] = useAtom(shareDialogStateAtom);
  const [collabAPI] = useAtom(collabAPIAtom);
  const [isCollaborating] = useAtomWithInitialValue(isCollaboratingAtom, () => {
@@ -435,15 +397,18 @@ const ExcalidrawWrapper = () => {
    }
  }, [excalidrawAPI]);

-  // ---------------------------------------------------------------------------
-  // Hoisted loadImages
-  // ---------------------------------------------------------------------------
-  const loadImages = useCallback(
-    (data: ResolutionType<typeof initializeScene>, isInitialLoad = false) => {
-      if (!data.scene || !excalidrawAPI) {
+  useEffect(() => {
+    if (!excalidrawAPI || (!isCollabDisabled && !collabAPI)) {
+      return;
+    }
+
+    const loadImages = (
+      data: ResolutionType<typeof initializeScene>,
+      isInitialLoad = false,
+    ) => {
+      if (!data.scene) {
        return;
      }
-
      if (collabAPI?.isCollaborating()) {
        if (data.scene.elements) {
          collabAPI
@@ -470,12 +435,6 @@ const ExcalidrawWrapper = () => {
          }, [] as FileId[]) || [];

        if (data.isExternalScene) {
-          if (fileIds.length) {
-            // Direct Firebase call (not through FileManager), so track manually
-            FileStatusStore.updateStatuses(
-              fileIds.map((id) => [id, "loading"]),
-            );
-          }
          loadFilesFromFirebase(
            `${FIREBASE_STORAGE_PREFIXES.shareLinkFiles}/${data.id}`,
            data.key,
@@ -487,18 +446,12 @@ const ExcalidrawWrapper = () => {
              erroredFiles,
              elements: excalidrawAPI.getSceneElementsIncludingDeleted(),
            });
-            FileStatusStore.updateStatuses([
-              ...loadedFiles.map((f) => [f.id, "loaded"] as [FileId, "loaded"]),
-              ...[...erroredFiles.keys()].map(
-                (id) => [id, "error"] as [FileId, "error"],
-              ),
-            ]);
          });
        } else if (isInitialLoad) {
          if (fileIds.length) {
            LocalData.fileStorage
              .getFiles(fileIds)
-              .then(async ({ loadedFiles, erroredFiles }) => {
+              .then(({ loadedFiles, erroredFiles }) => {
                if (loadedFiles.length) {
                  excalidrawAPI.addFiles(loadedFiles);
                }
@@ -511,19 +464,10 @@ const ExcalidrawWrapper = () => {
          }
          // on fresh load, clear unused files from IDB (from previous
          // session)
-          LocalData.fileStorage.clearObsoleteFiles({
-            currentFileIds: fileIds,
-          });
+          LocalData.fileStorage.clearObsoleteFiles({ currentFileIds: fileIds });
        }
      }
-    },
-    [collabAPI, excalidrawAPI],
-  );
-
-  useEffect(() => {
-    if (!excalidrawAPI || (!isCollabDisabled && !collabAPI)) {
-      return;
-    }
+    };

    initializeScene({ collabAPI, excalidrawAPI }).then(async (data) => {
      loadImages(data, /* isInitialLoad */ true);
@@ -546,10 +490,8 @@ const ExcalidrawWrapper = () => {
          loadImages(data);
          if (data.scene) {
            excalidrawAPI.updateScene({
-              elements: restoreElements(data.scene.elements, null, {
-                repairBindings: true,
-              }),
-              appState: restoreAppState(data.scene.appState, null),
+              ...data.scene,
+              ...restore(data.scene, null, null, { repairBindings: true }),
              captureUpdate: CaptureUpdateAction.IMMEDIATELY,
            });
          }
@@ -557,6 +499,11 @@ const ExcalidrawWrapper = () => {
      }
    };

+    const titleTimeout = setTimeout(
+      () => (document.title = APP_NAME),
+      TITLE_TIMEOUT,
+    );
+
    const syncData = debounce(() => {
      if (isTestEnv()) {
        return;
@@ -647,8 +594,9 @@ const ExcalidrawWrapper = () => {
        visibilityChange,
        false,
      );
+      clearTimeout(titleTimeout);
    };
-  }, [isCollabDisabled, collabAPI, excalidrawAPI, setLangCode, loadImages]);
+  }, [isCollabDisabled, collabAPI, excalidrawAPI, setLangCode]);

  useEffect(() => {
    const unloadHandler = (event: BeforeUnloadEvent) => {
@@ -721,8 +669,8 @@ const ExcalidrawWrapper = () => {
      debugRenderer(
        debugCanvasRef.current,
        appState,
-        elements,
        window.devicePixelRatio,
+        () => forceRefresh((prev) => !prev),
      );
    }
  };
@@ -786,63 +734,11 @@ const ExcalidrawWrapper = () => {

  const isOffline = useAtomValue(isOfflineAtom);

-  const localStorageQuotaExceeded = useAtomValue(localStorageQuotaExceededAtom);
-
  const onCollabDialogOpen = useCallback(
    () => setShareDialogState({ isOpen: true, type: "collaborationOnly" }),
    [setShareDialogState],
  );

-  // ---------------------------------------------------------------------------
-  // onExport — intercepts file save to wait for pending image loads
-  // ---------------------------------------------------------------------------
-  const onExport: Required<ExcalidrawProps>["onExport"] = useCallback(
-    async function* () {
-      let snapshot = FileStatusStore.getSnapshot();
-      const { pending, total } = FileStatusStore.getPendingCount(
-        snapshot.value,
-      );
-      if (pending === 0) {
-        return;
-      }
-
-      // Yield initial progress
-      yield {
-        type: "progress",
-        progress: (total - pending) / total,
-        message: `Loading images (${total - pending}/${total})...`,
-      };
-
-      // Wait for all pending images to finish
-      while (true) {
-        snapshot = await FileStatusStore.pull(snapshot.version);
-        const { pending: nowPending, total: nowTotal } =
-          FileStatusStore.getPendingCount(snapshot.value);
-
-        yield {
-          type: "progress",
-          progress: (nowTotal - nowPending) / nowTotal,
-          message: `Loading images (${nowTotal - nowPending}/${nowTotal})...`,
-        };
-
-        if (nowPending === 0) {
-          await new Promise((r) => setTimeout(r, 500));
-          yield {
-            type: "progress",
-            message: `Preparing export...`,
-          };
-          return;
-        }
-      }
-    },
-    [],
-  );
-
-  // const onExport = () => {
-  //   return new Promise((r) => setTimeout(r, 2500));
-  //   // console.log("onExport");
-  // };
-
  // browsers generally prevent infinite self-embedding, there are
  // cases where it still happens, and while we disallow self-embedding
  // by not whitelisting our own origin, this serves as an additional guard
@@ -909,8 +805,8 @@ const ExcalidrawWrapper = () => {
      })}
    >
      <Excalidraw
+        excalidrawAPI={excalidrawRefCallback}
        onChange={onChange}
-        onExport={onExport}
        initialData={initialStatePromiseRef.current.promise}
        isCollaborating={isCollaborating}
        onPointerUpdate={collabAPI?.onPointerUpdate}
@@ -956,22 +852,14 @@ const ExcalidrawWrapper = () => {
          if (isMobile || !collabAPI || isCollabDisabled) {
            return null;
          }
-
          return (
-            <div className="excalidraw-ui-top-right">
-              {excalidrawAPI?.getEditorInterface().formFactor === "desktop" && (
-                <ExcalidrawPlusPromoBanner
-                  isSignedIn={isExcalidrawPlusSignedUser}
-                />
-              )}
-
+            <div className="top-right-ui">
              {collabError.message && <CollabError collabError={collabError} />}
              <LiveCollaborationTrigger
                isCollaborating={isCollaborating}
                onSelect={() =>
                  setShareDialogState({ isOpen: true, type: "share" })
                }
-                editorInterface={editorInterface}
              />
            </div>
          );
@@ -1020,15 +908,10 @@ const ExcalidrawWrapper = () => {

        <TTDDialogTrigger />
        {isCollaborating && isOffline && (
-          <div className="alertalert--warning">
+          <div className="collab-offline-warning">
            {t("alerts.collabOfflineWarning")}
          </div>
        )}
-        {localStorageQuotaExceeded && (
-          <div className="alert alert--danger">
-            {t("alerts.localStorageQuotaExceeded")}
-          </div>
-        )}
        {latestShareableLink && (
          <ShareableLinkDialog
            link={latestShareableLink}
@@ -1057,8 +940,6 @@ const ExcalidrawWrapper = () => {
          }}
        />

-        <AppSidebar />
-
        {errorMessage && (
          <ErrorDialog onClose={() => setErrorMessage("")}>
            {errorMessage}
@@ -1276,9 +1157,7 @@ const ExcalidrawApp = () => {
  return (
    <TopErrorBoundary>
      <Provider store={appJotaiStore}>
-        <ExcalidrawAPIProvider>
-          <ExcalidrawWrapper />
-        </ExcalidrawAPIProvider>
+        <ExcalidrawWrapper />
      </Provider>
    </TopErrorBoundary>
  );
@@ -8,8 +8,7 @@ export const SYNC_BROWSER_TABS_TIMEOUT = 50;
 export const CURSOR_SYNC_TIMEOUT = 33; // ~30fps
 export const DELETED_ELEMENT_TIMEOUT = 24 * 60 * 60 * 1000; // 1 day

-// should be aligned with MAX_ALLOWED_FILE_BYTES
-export const FILE_UPLOAD_MAX_BYTES = 4 * 1024 * 1024; // 4 MiB
+export const FILE_UPLOAD_MAX_BYTES = 3 * 1024 * 1024; // 3 MiB
 // 1 year (https://stackoverflow.com/a/25201898/927631)
 export const FILE_CACHE_MAX_AGE_SEC = 31536000;

@@ -46,7 +45,6 @@ export const STORAGE_KEYS = {
  VERSION_FILES: "version-files",

  IDB_LIBRARY: "excalidraw-library",
-  IDB_TTD_CHATS: "excalidraw-ttd-chats",

  // do not use apart from migrations
  __LEGACY_LOCAL_STORAGE_LIBRARY: "excalidraw-library",
@@ -6,7 +6,7 @@ import {
  reconcileElements,
 } from "@excalidraw/excalidraw";
 import { ErrorDialog } from "@excalidraw/excalidraw/components/ErrorDialog";
-import { APP_NAME, cloneJSON, EVENT, toBrandedType } from "@excalidraw/common";
+import { APP_NAME, EVENT } from "@excalidraw/common";
 import {
  IDLE_THRESHOLD,
  ACTIVE_THRESHOLD,
@@ -19,9 +19,12 @@ import {
  throttleRAF,
 } from "@excalidraw/common";
 import { decryptData } from "@excalidraw/excalidraw/data/encryption";
-import { getVisibleSceneBounds } from "@excalidraw/element";
-import { newElementWith } from "@excalidraw/element";
-import { isImageElement, isInitializedImageElement } from "@excalidraw/element";
+import { getVisibleSceneBounds } from "@excalidraw/element/bounds";
+import { newElementWith } from "@excalidraw/element/mutateElement";
+import {
+  isImageElement,
+  isInitializedImageElement,
+} from "@excalidraw/element/typeChecks";
 import { AbortError } from "@excalidraw/excalidraw/errors";
 import { t } from "@excalidraw/excalidraw/i18n";
 import { withBatchedUpdates } from "@excalidraw/excalidraw/reactUtils";
@@ -29,8 +32,6 @@ import { withBatchedUpdates } from "@excalidraw/excalidraw/reactUtils";
 import throttle from "lodash.throttle";
 import { PureComponent } from "react";

-import { bumpElementVersions } from "@excalidraw/excalidraw/data/restore";
-
 import type {
  ReconciledExcalidrawElement,
  RemoteExcalidrawElement,
@@ -72,7 +73,6 @@ import {
  FileManager,
  updateStaleImageStatuses,
 } from "../data/FileManager";
-import { FileStatusStore } from "../data/fileStatusStore";
 import { LocalData } from "../data/LocalData";
 import {
  isSavedToFirebase,
@@ -150,7 +150,6 @@ class Collab extends PureComponent<CollabProps, CollabState> {
    };
    this.portal = new Portal(this);
    this.fileManager = new FileManager({
-      onFileStatusChange: FileStatusStore.updateStatuses.bind(FileStatusStore),
      getFiles: async (fileIds) => {
        const { roomId, roomKey } = this.portal;
        if (!roomId || !roomKey) {
@@ -315,7 +314,6 @@ class Collab extends PureComponent<CollabProps, CollabState> {
  saveCollabRoomToFirebase = async (
    syncableElements: readonly SyncableExcalidrawElement[],
  ) => {
-    syncableElements = cloneJSON(syncableElements);
    try {
      const storedElements = await saveToFirebase(
        this.portal,
@@ -446,7 +444,7 @@ class Collab extends PureComponent<CollabProps, CollabState> {
  };

  private decryptPayload = async (
-    iv: Uint8Array<ArrayBuffer>,
+    iv: Uint8Array,
    encryptedData: ArrayBuffer,
    decryptionKey: string,
  ): Promise<ValueOf<SocketUpdateDataSource>> => {
@@ -535,10 +533,7 @@ class Collab extends PureComponent<CollabProps, CollabState> {
      return null;
    }

-    if (existingRoomLinkData) {
-      // when joining existing room, don't merge it with current scene data
-      this.excalidrawAPI.resetScene();
-    } else {
+    if (!existingRoomLinkData) {
      const elements = this.excalidrawAPI.getSceneElements().map((element) => {
        if (isImageElement(element) && element.status === "saved") {
          return newElementWith(element, { status: "pending" });
@@ -567,7 +562,7 @@ class Collab extends PureComponent<CollabProps, CollabState> {
    // All socket listeners are moving to Portal
    this.portal.socket.on(
      "client-broadcast",
-      async (encryptedData: ArrayBuffer, iv: Uint8Array<ArrayBuffer>) => {
+      async (encryptedData: ArrayBuffer, iv: Uint8Array) => {
        if (!this.portal.roomKey) {
          return;
        }
@@ -584,9 +579,7 @@ class Collab extends PureComponent<CollabProps, CollabState> {
          case WS_SUBTYPES.INIT: {
            if (!this.portal.socketInitialized) {
              this.initializeRoom({ fetchScene: false });
-              const remoteElements = toBrandedType<
-                readonly RemoteExcalidrawElement[]
-              >(decryptedData.payload.elements);
+              const remoteElements = decryptedData.payload.elements;
              const reconciledElements =
                this._reconcileElements(remoteElements);
              this.handleRemoteSceneUpdate(reconciledElements);
@@ -600,11 +593,7 @@ class Collab extends PureComponent<CollabProps, CollabState> {
          }
          case WS_SUBTYPES.UPDATE:
            this.handleRemoteSceneUpdate(
-              this._reconcileElements(
-                toBrandedType<readonly RemoteExcalidrawElement[]>(
-                  decryptedData.payload.elements,
-                ),
-              ),
+              this._reconcileElements(decryptedData.payload.elements),
            );
            break;
          case WS_SUBTYPES.MOUSE_LOCATION: {
@@ -753,28 +742,17 @@ class Collab extends PureComponent<CollabProps, CollabState> {
  };

  private _reconcileElements = (
-    remoteElements: readonly RemoteExcalidrawElement[],
+    remoteElements: readonly ExcalidrawElement[],
  ): ReconciledExcalidrawElement[] => {
+    const localElements = this.getSceneElementsIncludingDeleted();
    const appState = this.excalidrawAPI.getAppState();
-
-    const existingElements = this.getSceneElementsIncludingDeleted();
-
-    // NOTE ideally we restore _after_ reconciliation but we can't do that
-    // as we'd regenerate even elements such as appState.newElement which would
-    // break the state
-    remoteElements = restoreElements(remoteElements, existingElements);
-
-    let reconciledElements = reconcileElements(
-      existingElements,
-      remoteElements,
+    const restoredRemoteElements = restoreElements(remoteElements, null);
+    const reconciledElements = reconcileElements(
+      localElements,
+      restoredRemoteElements as RemoteExcalidrawElement[],
      appState,
    );

-    reconciledElements = bumpElementVersions(
-      reconciledElements,
-      existingElements,
-    );
-
    // Avoid broadcasting to the rest of the collaborators the scene
    // we just received!
    // Note: this needs to be set before updating the scene as it
@@ -1,7 +1,7 @@
 import { CaptureUpdateAction } from "@excalidraw/excalidraw";
 import { trackEvent } from "@excalidraw/excalidraw/analytics";
 import { encryptData } from "@excalidraw/excalidraw/data/encryption";
-import { newElementWith } from "@excalidraw/element";
+import { newElementWith } from "@excalidraw/element/mutateElement";
 import throttle from "lodash.throttle";

 import type { UserIdleState } from "@excalidraw/common";
@@ -4,15 +4,12 @@ import {
  getTextFromElements,
  MIME_TYPES,
  TTDDialog,
-  TTDStreamFetch,
 } from "@excalidraw/excalidraw";
 import { getDataURL } from "@excalidraw/excalidraw/data/blob";
 import { safelyParseJSON } from "@excalidraw/common";

 import type { ExcalidrawImperativeAPI } from "@excalidraw/excalidraw/types";

-import { TTDIndexedDBAdapter } from "../data/TTDStorage";
-
 export const AIComponents = ({
  excalidrawAPI,
 }: {
@@ -76,7 +73,7 @@ export const AIComponents = ({
                  </br>
                  <div>You can also try <a href="${
                    import.meta.env.VITE_APP_PLUS_LP
-                  }/plus?utm_source=excalidraw&utm_medium=app&utm_content=d2c" target="_blank" rel="noopener">Excalidraw+</a> to get more requests.</div>
+                  }/plus?utm_source=excalidraw&utm_medium=app&utm_content=d2c" target="_blank" rel="noreferrer noopener">Excalidraw+</a> to get more requests.</div>
                </div>
                </body>
                </html>`,
@@ -102,23 +99,61 @@ export const AIComponents = ({
      />

      <TTDDialog
-        onTextSubmit={async (props) => {
-          const { onChunk, onStreamCreated, signal, messages } = props;
+        onTextSubmit={async (input) => {
+          try {
+            const response = await fetch(
+              `${
+                import.meta.env.VITE_APP_AI_BACKEND
+              }/v1/ai/text-to-diagram/generate`,
+              {
+                method: "POST",
+                headers: {
+                  Accept: "application/json",
+                  "Content-Type": "application/json",
+                },
+                body: JSON.stringify({ prompt: input }),
+              },
+            );

-          const result = await TTDStreamFetch({
-            url: `${
-              import.meta.env.VITE_APP_AI_BACKEND
-            }/v1/ai/text-to-diagram/chat-streaming`,
-            messages,
-            onChunk,
-            onStreamCreated,
-            extractRateLimits: true,
-            signal,
-          });
+            const rateLimit = response.headers.has("X-Ratelimit-Limit")
+              ? parseInt(response.headers.get("X-Ratelimit-Limit") || "0", 10)
+              : undefined;

-          return result;
+            const rateLimitRemaining = response.headers.has(
+              "X-Ratelimit-Remaining",
+            )
+              ? parseInt(
+                  response.headers.get("X-Ratelimit-Remaining") || "0",
+                  10,
+                )
+              : undefined;
+
+            const json = await response.json();
+
+            if (!response.ok) {
+              if (response.status === 429) {
+                return {
+                  rateLimit,
+                  rateLimitRemaining,
+                  error: new Error(
+                    "Too many requests today, please try again tomorrow!",
+                  ),
+                };
+              }
+
+              throw new Error(json.message || "Generation failed...");
+            }
+
+            const generatedResponse = json.generatedResponse;
+            if (!generatedResponse) {
+              throw new Error("Generation failed...");
+            }
+
+            return { generatedResponse, rateLimit, rateLimitRemaining };
+          } catch (err: any) {
+            throw new Error("Request failed");
+          }
        }}
-        persistenceAdapter={TTDIndexedDBAdapter}
      />
    </>
  );
@@ -5,6 +5,7 @@ import { isExcalidrawPlusSignedUser } from "../app_constants";

 import { DebugFooter, isVisualDebuggerEnabled } from "./DebugCanvas";
 import { EncryptedIcon } from "./EncryptedIcon";
+import { ExcalidrawPlusAppLink } from "./ExcalidrawPlusAppLink";

 export const AppFooter = React.memo(
  ({ onChange }: { onChange: () => void }) => {
@@ -18,7 +19,11 @@ export const AppFooter = React.memo(
          }}
        >
          {isVisualDebuggerEnabled() && <DebugFooter onChange={onChange} />}
-          {!isExcalidrawPlusSignedUser && <EncryptedIcon />}
+          {isExcalidrawPlusSignedUser ? (
+            <ExcalidrawPlusAppLink />
+          ) : (
+            <EncryptedIcon />
+          )}
        </div>
      </Footer>
    );
@@ -62,7 +62,7 @@ export const AppMainMenu: React.FC<{
      {isDevEnv() && (
        <MainMenu.Item
          icon={eyeIcon}
-          onSelect={() => {
+          onClick={() => {
            if (window.visualDebug) {
              delete window.visualDebug;
              saveDebugState({ enabled: false });
@@ -77,7 +77,6 @@ export const AppMainMenu: React.FC<{
        </MainMenu.Item>
      )}
      <MainMenu.Separator />
-      <MainMenu.DefaultItems.Preferences />
      <MainMenu.DefaultItems.ToggleTheme
        allowSystemTheme
        theme={props.theme}
@@ -1,92 +0,0 @@
-.excalidraw {
-  .app-sidebar-promo-container {
-    padding: 0.75rem;
-    display: flex;
-    flex-direction: column;
-    text-align: center;
-    gap: 1.5rem;
-    flex: 1 1 auto;
-
-    .link-button {
-      margin: 0 auto !important;
-      width: 100%;
-      button {
-        width: 100%;
-      }
-    }
-  }
-
-  .app-sidebar-promo-image {
-    margin: 1rem 0;
-
-    height: 295px;
-    background-size: contain;
-    background-position: center;
-    background-repeat: no-repeat;
-    background-size: calc(
-      var(--right-sidebar-width, 100%) - var(--space-factor) * 2
-    );
-
-    background-image: radial-gradient(
-        circle,
-        transparent 0%,
-        var(--sidebar-bg-color) 100%
-      ),
-      var(--image-source);
-
-    display: flex;
-  }
-
-  .app-sidebar-promo-text {
-    padding: 0 2rem;
-  }
-
-  .link-button {
-    margin: 0 auto;
-  }
-
-  .app-sidebar-promo-text {
-    padding: 0 0.5rem;
-    font-size: 0.875rem;
-    font-weight: 700;
-    line-height: 1.4;
-  }
-
-  .app-sidebar-promo-illustration {
-    position: relative;
-    min-height: 7rem;
-    display: flex;
-    align-items: flex-start;
-    justify-content: center;
-    padding-top: 0.125rem;
-
-    .app-sidebar-promo-heart {
-      width: 46px;
-      transform: translateX(-14px);
-      height: auto;
-    }
-
-    .app-sidebar-promo-trial-note {
-      position: absolute;
-      top: 2.75rem;
-      left: 50%;
-      transform: translateX(-56%) rotate(-7deg);
-      font-size: 1rem;
-      line-height: 1.15;
-      color: var(--color-primary);
-
-      white-space: nowrap;
-    }
-
-    .app-sidebar-promo-trial-arrow {
-      position: absolute;
-      top: 3.35rem;
-      left: 55%;
-      width: 4.5rem;
-      height: 3rem;
-      transform: translateX(1.75rem) rotate(10deg);
-      color: var(--color-primary);
-      overflow: visible;
-    }
-  }
-}
@@ -1,131 +0,0 @@
-import { DefaultSidebar, Sidebar, THEME } from "@excalidraw/excalidraw";
-import {
-  messageCircleIcon,
-  presentationIcon,
-} from "@excalidraw/excalidraw/components/icons";
-import { LinkButton } from "@excalidraw/excalidraw/components/LinkButton";
-import { useUIAppState } from "@excalidraw/excalidraw/context/ui-appState";
-
-import "./AppSidebar.scss";
-
-type SidebarPromoCopyProps = {
-  text: string;
-};
-
-const SidebarPromoCopy = (props: SidebarPromoCopyProps) => {
-  return (
-    <div className="app-sidebar-promo-copy">
-      <div className="app-sidebar-promo-illustration" aria-hidden="true">
-        <svg
-          xmlns="http://www.w3.org/2000/svg"
-          viewBox="0 0 300 250"
-          className="app-sidebar-promo-heart"
-        >
-          <path
-            d="M 145 75
-           C 110 35, 60 55, 65 120
-           C 70 180, 140 190, 215 200
-           C 225 180, 260 110, 235 55
-           C 210 -5, 140 20, 160 105"
-            fill="none"
-            stroke="#D06B64"
-            strokeWidth="16"
-            strokeLinecap="round"
-          />
-        </svg>
-
-        <div className="app-sidebar-promo-trial-note excalifont">
-          14 days of
-          <br />
-          free trial
-        </div>
-        <svg
-          className="app-sidebar-promo-trial-arrow"
-          viewBox="0 0 72 48"
-          fill="none"
-          xmlns="http://www.w3.org/2000/svg"
-        >
-          <path
-            d="M5 6C23 1 50 8 48 32"
-            stroke="currentColor"
-            strokeWidth="2"
-            strokeLinecap="round"
-          />
-          <path
-            d="M42 26L48 32L54 26"
-            stroke="currentColor"
-            strokeWidth="2"
-            strokeLinecap="round"
-            strokeLinejoin="round"
-          />
-        </svg>
-      </div>
-      <div className="app-sidebar-promo-text">{props.text}</div>
-    </div>
-  );
-};
-
-export const AppSidebar = () => {
-  const { theme, openSidebar } = useUIAppState();
-
-  return (
-    <DefaultSidebar>
-      <DefaultSidebar.TabTriggers>
-        <Sidebar.TabTrigger
-          tab="comments"
-          style={{ opacity: openSidebar?.tab === "comments" ? 1 : 0.4 }}
-        >
-          {messageCircleIcon}
-        </Sidebar.TabTrigger>
-        <Sidebar.TabTrigger
-          tab="presentation"
-          style={{ opacity: openSidebar?.tab === "presentation" ? 1 : 0.4 }}
-        >
-          {presentationIcon}
-        </Sidebar.TabTrigger>
-      </DefaultSidebar.TabTriggers>
-      <Sidebar.Tab tab="comments">
-        <div className="app-sidebar-promo-container">
-          <div
-            className="app-sidebar-promo-image"
-            style={{
-              ["--image-source" as any]: `url(/sidebar-comments-promo-${
-                theme === THEME.DARK ? "dark" : "light"
-              }.jpg)`,
-              opacity: 0.9,
-            }}
-          />
-          <SidebarPromoCopy text="Make comments with Excalidraw+" />
-          <LinkButton
-            href={`${
-              import.meta.env.VITE_APP_PLUS_LP
-            }/plus?utm_source=excalidraw&utm_medium=app&utm_content=comments_promo#excalidraw-redirect`}
-          >
-            Sign up now
-          </LinkButton>
-        </div>
-      </Sidebar.Tab>
-      <Sidebar.Tab tab="presentation" className="px-3">
-        <div className="app-sidebar-promo-container">
-          <div
-            className="app-sidebar-promo-image"
-            style={{
-              ["--image-source" as any]: `url(/sidebar-presentation-promo-${
-                theme === THEME.DARK ? "dark" : "light"
-              }.jpg)`,
-              opacity: 0.7,
-            }}
-          />
-          <SidebarPromoCopy text="Create presentation with Excalidraw+" />
-          <LinkButton
-            href={`${
-              import.meta.env.VITE_APP_PLUS_LP
-            }/plus?utm_source=excalidraw&utm_medium=app&utm_content=presentations_promo#excalidraw-redirect`}
-          >
-            Sign up now
-          </LinkButton>
-        </div>
-      </Sidebar.Tab>
-    </DefaultSidebar>
-  );
-};
@@ -33,15 +33,7 @@ export const AppWelcomeScreen: React.FC<{
        return bit;
      });
  } else {
-    headingContent = (
-      <>
-        {t("welcomeScreen.app.center_heading")}
-        <br />
-        {t("welcomeScreen.app.center_heading_line2")}
-        <br />
-        {t("welcomeScreen.app.center_heading_line3")}
-      </>
-    );
+    headingContent = t("welcomeScreen.app.center_heading");
  }

  return (
@@ -8,14 +8,8 @@ import {
  getNormalizedCanvasDimensions,
 } from "@excalidraw/excalidraw/renderer/helpers";
 import { type AppState } from "@excalidraw/excalidraw/types";
-import { arrayToMap, throttleRAF } from "@excalidraw/common";
-import { useCallback } from "react";
-
-import {
-  getGlobalFixedPointForBindableElement,
-  isArrowElement,
-  isBindableElement,
-} from "@excalidraw/element";
+import { throttleRAF } from "@excalidraw/common";
+import { useCallback, useImperativeHandle, useRef } from "react";

 import {
  isLineSegment,
@@ -24,20 +18,9 @@ import {
 } from "@excalidraw/math";
 import { isCurve } from "@excalidraw/math/curve";

-import React from "react";
+import type { DebugElement } from "@excalidraw/excalidraw/visualdebug";

 import type { Curve } from "@excalidraw/math";
-import type {
-  DebugElement,
-  DebugPolygon,
-} from "@excalidraw/element/visualdebug";
-import type {
-  ElementsMap,
-  ExcalidrawArrowElement,
-  ExcalidrawBindableElement,
-  FixedPointBinding,
-  OrderedExcalidrawElement,
-} from "@excalidraw/element/types";

 import { STORAGE_KEYS } from "../app_constants";

@@ -78,44 +61,6 @@ const renderCubicBezier = (
  context.restore();
 };

-const renderPolygon = (
-  context: CanvasRenderingContext2D,
-  zoom: number,
-  polygon: DebugPolygon,
-  color: string,
-) => {
-  const { points, fill, close } = polygon;
-
-  if (points.length < 2) {
-    return;
-  }
-
-  context.save();
-  context.beginPath();
-  context.moveTo(points[0][0] * zoom, points[0][1] * zoom);
-  for (let i = 1; i < points.length; i += 1) {
-    context.lineTo(points[i][0] * zoom, points[i][1] * zoom);
-  }
-  if (close !== false) {
-    context.closePath();
-  }
-
-  if (fill) {
-    context.save();
-    context.globalAlpha = 0.15;
-    context.fillStyle = color;
-    context.fill();
-    context.restore();
-  }
-
-  context.strokeStyle = color;
-  context.stroke();
-  context.restore();
-};
-
-const isDebugPolygon = (data: DebugElement["data"]): data is DebugPolygon =>
-  (data as DebugPolygon).type === "polygon";
-
 const renderOrigin = (context: CanvasRenderingContext2D, zoom: number) => {
  context.strokeStyle = "#888";
  context.save();
@@ -128,176 +73,6 @@ const renderOrigin = (context: CanvasRenderingContext2D, zoom: number) => {
  context.save();
 };

-const _renderBinding = (
-  context: CanvasRenderingContext2D,
-  binding: FixedPointBinding,
-  elementsMap: ElementsMap,
-  zoom: number,
-  width: number,
-  height: number,
-  color: string,
-) => {
-  if (!binding.fixedPoint) {
-    console.warn("Binding must have a fixedPoint");
-    return;
-  }
-
-  const bindable = elementsMap.get(
-    binding.elementId,
-  ) as ExcalidrawBindableElement;
-  const [x, y] = getGlobalFixedPointForBindableElement(
-    binding.fixedPoint,
-    bindable,
-    elementsMap,
-  );
-
-  context.save();
-  context.strokeStyle = color;
-  context.lineWidth = 1;
-  context.beginPath();
-  context.moveTo(x * zoom, y * zoom);
-  context.bezierCurveTo(
-    x * zoom - width,
-    y * zoom - height,
-    x * zoom - width,
-    y * zoom + height,
-    x * zoom,
-    y * zoom,
-  );
-  context.stroke();
-  context.restore();
-};
-
-const _renderBindableBinding = (
-  binding: FixedPointBinding,
-  context: CanvasRenderingContext2D,
-  elementsMap: ElementsMap,
-  zoom: number,
-  width: number,
-  height: number,
-  color: string,
-) => {
-  const bindable = elementsMap.get(
-    binding.elementId,
-  ) as ExcalidrawBindableElement;
-  if (!binding.fixedPoint) {
-    console.warn("Binding must have a fixedPoint");
-    return;
-  }
-
-  const [x, y] = getGlobalFixedPointForBindableElement(
-    binding.fixedPoint,
-    bindable,
-    elementsMap,
-  );
-
-  context.save();
-  context.strokeStyle = color;
-  context.lineWidth = 1;
-  context.beginPath();
-  context.moveTo(x * zoom, y * zoom);
-  context.bezierCurveTo(
-    x * zoom + width,
-    y * zoom + height,
-    x * zoom + width,
-    y * zoom - height,
-    x * zoom,
-    y * zoom,
-  );
-  context.stroke();
-  context.restore();
-};
-
-const renderBindings = (
-  context: CanvasRenderingContext2D,
-  elements: readonly OrderedExcalidrawElement[],
-  zoom: number,
-) => {
-  const elementsMap = arrayToMap(elements);
-  const dim = 16;
-  elements.forEach((element) => {
-    if (element.isDeleted) {
-      return;
-    }
-
-    if (isArrowElement(element)) {
-      if (element.startBinding) {
-        if (
-          !elementsMap
-            .get(element.startBinding.elementId)
-            ?.boundElements?.find((e) => e.id === element.id)
-        ) {
-          return;
-        }
-
-        _renderBinding(
-          context,
-          element.startBinding,
-          elementsMap,
-          zoom,
-          dim,
-          dim,
-          element.startBinding?.mode === "orbit" ? "red" : "black",
-        );
-      }
-
-      if (element.endBinding) {
-        if (
-          !elementsMap
-            .get(element.endBinding.elementId)
-            ?.boundElements?.find((e) => e.id === element.id)
-        ) {
-          return;
-        }
-        _renderBinding(
-          context,
-          element.endBinding,
-          elementsMap,
-          zoom,
-          dim,
-          dim,
-          element.endBinding?.mode === "orbit" ? "red" : "black",
-        );
-      }
-    }
-
-    if (isBindableElement(element) && element.boundElements?.length) {
-      element.boundElements.forEach((boundElement) => {
-        if (boundElement.type !== "arrow") {
-          return;
-        }
-
-        const arrow = elementsMap.get(
-          boundElement.id,
-        ) as ExcalidrawArrowElement;
-
-        if (arrow && arrow.startBinding?.elementId === element.id) {
-          _renderBindableBinding(
-            arrow.startBinding,
-            context,
-            elementsMap,
-            zoom,
-            dim,
-            dim,
-            "green",
-          );
-        }
-        if (arrow && arrow.endBinding?.elementId === element.id) {
-          _renderBindableBinding(
-            arrow.endBinding,
-            context,
-            elementsMap,
-            zoom,
-            dim,
-            dim,
-            "green",
-          );
-        }
-      });
-    }
-  });
-};
-
 const render = (
  frame: DebugElement[],
  context: CanvasRenderingContext2D,
@@ -321,9 +96,6 @@ const render = (
          el.color,
        );
        break;
-      case isDebugPolygon(el.data):
-        renderPolygon(context, appState.zoom.value, el.data, el.color);
-        break;
      default:
        throw new Error(`Unknown element type ${JSON.stringify(el)}`);
    }
@@ -333,14 +105,18 @@ const render = (
 const _debugRenderer = (
  canvas: HTMLCanvasElement,
  appState: AppState,
-  elements: readonly OrderedExcalidrawElement[],
  scale: number,
+  refresh: () => void,
 ) => {
  const [normalizedWidth, normalizedHeight] = getNormalizedCanvasDimensions(
    canvas,
    scale,
  );

+  if (appState.height !== canvas.height || appState.width !== canvas.width) {
+    refresh();
+  }
+
  const context = bootstrapCanvas({
    canvas,
    scale,
@@ -357,7 +133,6 @@ const _debugRenderer = (
  );

  renderOrigin(context, appState.zoom.value);
-  renderBindings(context, elements, appState.zoom.value);

  if (
    window.visualDebug?.currentFrame &&
@@ -409,11 +184,12 @@ export const debugRenderer = throttleRAF(
  (
    canvas: HTMLCanvasElement,
    appState: AppState,
-    elements: readonly OrderedExcalidrawElement[],
    scale: number,
+    refresh: () => void,
  ) => {
-    _debugRenderer(canvas, appState, elements, scale);
+    _debugRenderer(canvas, appState, scale, refresh);
  },
+  { trailing: true },
 );

 export const loadSavedDebugState = () => {
@@ -538,29 +314,35 @@ export const DebugFooter = ({ onChange }: { onChange: () => void }) => {
 interface DebugCanvasProps {
  appState: AppState;
  scale: number;
+  ref?: React.Ref<HTMLCanvasElement>;
 }

-const DebugCanvas = React.forwardRef<HTMLCanvasElement, DebugCanvasProps>(
-  ({ appState, scale }, ref) => {
-    const { width, height } = appState;
+const DebugCanvas = ({ appState, scale, ref }: DebugCanvasProps) => {
+  const { width, height } = appState;

-    return (
-      <canvas
-        style={{
-          width,
-          height,
-          position: "absolute",
-          zIndex: 2,
-          pointerEvents: "none",
-        }}
-        width={width * scale}
-        height={height * scale}
-        ref={ref}
-      >
-        Debug Canvas
-      </canvas>
-    );
-  },
-);
+  const canvasRef = useRef<HTMLCanvasElement>(null);
+  useImperativeHandle<HTMLCanvasElement | null, HTMLCanvasElement | null>(
+    ref,
+    () => canvasRef.current,
+    [canvasRef],
+  );
+
+  return (
+    <canvas
+      style={{
+        width,
+        height,
+        position: "absolute",
+        zIndex: 2,
+        pointerEvents: "none",
+      }}
+      width={width * scale}
+      height={height * scale}
+      ref={canvasRef}
+    >
+      Debug Canvas
+    </canvas>
+  );
+};

 export default DebugCanvas;
@@ -10,7 +10,7 @@ export const EncryptedIcon = () => {
      className="encrypted-icon tooltip"
      href="https://plus.excalidraw.com/blog/end-to-end-encryption"
      target="_blank"
-      rel="noopener"
+      rel="noopener noreferrer"
      aria-label={t("encrypted.link")}
    >
      <Tooltip label={t("encrypted.tooltip")} long={true}>
@@ -0,0 +1,19 @@
+import { isExcalidrawPlusSignedUser } from "../app_constants";
+
+export const ExcalidrawPlusAppLink = () => {
+  if (!isExcalidrawPlusSignedUser) {
+    return null;
+  }
+  return (
+    <a
+      href={`${
+        import.meta.env.VITE_APP_PLUS_APP
+      }?utm_source=excalidraw&utm_medium=app&utm_content=signedInUserRedirectButton#excalidraw-redirect`}
+      target="_blank"
+      rel="noreferrer"
+      className="plus-button"
+    >
+      Go to Excalidraw+
+    </a>
+  );
+};
@@ -1,22 +0,0 @@
-export const ExcalidrawPlusPromoBanner = ({
-  isSignedIn,
-}: {
-  isSignedIn: boolean;
-}) => {
-  return (
-    <a
-      href={
-        isSignedIn
-          ? import.meta.env.VITE_APP_PLUS_APP
-          : `${
-              import.meta.env.VITE_APP_PLUS_LP
-            }/plus?utm_source=excalidraw&utm_medium=app&utm_content=guestBanner#excalidraw-redirect`
-      }
-      target="_blank"
-      rel="noopener"
-      className="plus-banner"
-    >
-      Excalidraw+
-    </a>
-  );
-};
@@ -12,7 +12,7 @@ import {
  generateEncryptionKey,
 } from "@excalidraw/excalidraw/data/encryption";
 import { serializeAsJSON } from "@excalidraw/excalidraw/data/json";
-import { isInitializedImageElement } from "@excalidraw/element";
+import { isInitializedImageElement } from "@excalidraw/element/typeChecks";
 import { useI18n } from "@excalidraw/excalidraw/i18n";

 import type {
@@ -0,0 +1,46 @@
+import { THEME } from "@excalidraw/common";
+import oc from "open-color";
+import React from "react";
+
+import type { Theme } from "@excalidraw/element/types";
+
+// https://github.com/tholman/github-corners
+export const GitHubCorner = React.memo(
+  ({ theme, dir }: { theme: Theme; dir: string }) => (
+    <svg
+      xmlns="http://www.w3.org/2000/svg"
+      width="40"
+      height="40"
+      viewBox="0 0 250 250"
+      className="rtl-mirror"
+      style={{
+        marginTop: "calc(var(--space-factor) * -1)",
+        [dir === "rtl" ? "marginLeft" : "marginRight"]:
+          "calc(var(--space-factor) * -1)",
+      }}
+    >
+      <a
+        href="https://github.com/excalidraw/excalidraw"
+        target="_blank"
+        rel="noopener noreferrer"
+        aria-label="GitHub repository"
+      >
+        <path
+          d="M0 0l115 115h15l12 27 108 108V0z"
+          fill={theme === THEME.LIGHT ? oc.gray[6] : oc.gray[7]}
+        />
+        <path
+          className="octo-arm"
+          d="M128 109c-15-9-9-19-9-19 3-7 2-11 2-11-1-7 3-2 3-2 4 5 2 11 2 11-3 10 5 15 9 16"
+          style={{ transformOrigin: "130px 106px" }}
+          fill={theme === THEME.LIGHT ? oc.white : "var(--default-bg-color)"}
+        />
+        <path
+          className="octo-body"
+          d="M115 115s4 2 5 0l14-14c3-2 6-3 8-3-8-11-15-24 2-41 5-5 10-7 16-7 1-2 3-7 12-11 0 0 5 3 7 16 4 2 8 5 12 9s7 8 9 12c14 3 17 7 17 7-4 8-9 11-11 11 0 6-2 11-7 16-16 16-30 10-41 2 0 3-1 7-5 11l-12 11c-1 1 1 5 1 5z"
+          fill={theme === THEME.LIGHT ? oc.white : "var(--default-bg-color)"}
+        />
+      </a>
+    </svg>
+  ),
+);
@@ -1,7 +1,7 @@
 import { CaptureUpdateAction } from "@excalidraw/excalidraw";
 import { compressData } from "@excalidraw/excalidraw/data/encode";
-import { newElementWith } from "@excalidraw/element";
-import { isInitializedImageElement } from "@excalidraw/element";
+import { newElementWith } from "@excalidraw/element/mutateElement";
+import { isInitializedImageElement } from "@excalidraw/element/typeChecks";
 import { t } from "@excalidraw/excalidraw/i18n";

 import type {
@@ -40,12 +40,10 @@ export class FileManager {

  private _getFiles;
  private _saveFiles;
-  private _onFileStatusChange;

  constructor({
    getFiles,
    saveFiles,
-    onFileStatusChange,
  }: {
    getFiles: (fileIds: FileId[]) => Promise<{
      loadedFiles: BinaryFileData[];
@@ -55,13 +53,9 @@ export class FileManager {
      savedFiles: Map<FileId, BinaryFileData>;
      erroredFiles: Map<FileId, BinaryFileData>;
    }>;
-    onFileStatusChange?: (
-      updates: Array<[FileId, "loading" | "loaded" | "error"]>,
-    ) => void;
  }) {
    this._getFiles = getFiles;
    this._saveFiles = saveFiles;
-    this._onFileStatusChange = onFileStatusChange;
  }

  /**
@@ -152,8 +146,6 @@ export class FileManager {
      this.fetchingFiles.set(id, true);
    }

-    this._onFileStatusChange?.(ids.map((id) => [id, "loading"]));
-
    try {
      const { loadedFiles, erroredFiles } = await this._getFiles(ids);

@@ -164,13 +156,6 @@ export class FileManager {
        this.erroredFiles_fetch.set(fileId, true);
      }

-      this._onFileStatusChange?.([
-        ...loadedFiles.map((f) => [f.id, "loaded"] as [FileId, "loaded"]),
-        ...[...erroredFiles.keys()].map(
-          (id) => [id, "error"] as [FileId, "error"],
-        ),
-      ]);
-
      return { loadedFiles, erroredFiles };
    } finally {
      for (const id of ids) {
@@ -210,13 +195,6 @@ export class FileManager {
  };

  reset() {
-    if (this._onFileStatusChange && this.fetchingFiles.size) {
-      this._onFileStatusChange(
-        [...this.fetchingFiles.keys()].map(
-          (id) => [id, "error"] as [FileId, "error"],
-        ),
-      );
-    }
    this.fetchingFiles.clear();
    this.savingFiles.clear();
    this.savedFiles.clear();
@@ -16,6 +16,7 @@ import {
  DEFAULT_SIDEBAR,
  debounce,
 } from "@excalidraw/common";
+import { clearElementsForLocalStorage } from "@excalidraw/element";
 import {
  createStore,
  entries,
@@ -26,9 +27,6 @@ import {
  get,
 } from "idb-keyval";

-import { appJotaiStore, atom } from "excalidraw-app/app-jotai";
-import { getNonDeletedElements } from "@excalidraw/element";
-
 import type { LibraryPersistedData } from "@excalidraw/excalidraw/data/library";
 import type { ImportedDataState } from "@excalidraw/excalidraw/data/types";
 import type { ExcalidrawElement, FileId } from "@excalidraw/element/types";
@@ -42,14 +40,11 @@ import type { MaybePromise } from "@excalidraw/common/utility-types";
 import { SAVE_TO_LOCAL_STORAGE_TIMEOUT, STORAGE_KEYS } from "../app_constants";

 import { FileManager } from "./FileManager";
-import { FileStatusStore } from "./fileStatusStore";
 import { Locker } from "./Locker";
 import { updateBrowserStateVersion } from "./tabSync";

 const filesStore = createStore("files-db", "files-store");

-export const localStorageQuotaExceededAtom = atom(false);
-
 class LocalFileManager extends FileManager {
  clearObsoleteFiles = async (opts: { currentFileIds: FileId[] }) => {
    await entries(filesStore).then((entries) => {
@@ -74,9 +69,6 @@ const saveDataStateToLocalStorage = (
  elements: readonly ExcalidrawElement[],
  appState: AppState,
 ) => {
-  const localStorageQuotaExceeded = appJotaiStore.get(
-    localStorageQuotaExceededAtom,
-  );
  try {
    const _appState = clearAppStateForLocalStorage(appState);

@@ -89,29 +81,19 @@ const saveDataStateToLocalStorage = (

    localStorage.setItem(
      STORAGE_KEYS.LOCAL_STORAGE_ELEMENTS,
-      JSON.stringify(getNonDeletedElements(elements)),
+      JSON.stringify(clearElementsForLocalStorage(elements)),
    );
    localStorage.setItem(
      STORAGE_KEYS.LOCAL_STORAGE_APP_STATE,
      JSON.stringify(_appState),
    );
    updateBrowserStateVersion(STORAGE_KEYS.VERSION_DATA_STATE);
-    if (localStorageQuotaExceeded) {
-      appJotaiStore.set(localStorageQuotaExceededAtom, false);
-    }
  } catch (error: any) {
    // Unable to access window.localStorage
    console.error(error);
-    if (isQuotaExceededError(error) && !localStorageQuotaExceeded) {
-      appJotaiStore.set(localStorageQuotaExceededAtom, true);
-    }
  }
 };

-const isQuotaExceededError = (error: any) => {
-  return error instanceof DOMException && error.name === "QuotaExceededError";
-};
-
 type SavingLockTypes = "collaboration";

 export class LocalData {
@@ -167,7 +149,6 @@ export class LocalData {
  // ---------------------------------------------------------------------------

  static fileStorage = new LocalFileManager({
-    onFileStatusChange: FileStatusStore.updateStatuses.bind(FileStatusStore),
    getFiles(ids) {
      return getMany(ids, filesStore).then(
        async (filesData: (BinaryFileData | undefined)[]) => {
@@ -1,51 +0,0 @@
-import { createStore, get, set } from "idb-keyval";
-
-import type { SavedChats } from "@excalidraw/excalidraw/components/TTDDialog/types";
-
-import { STORAGE_KEYS } from "../app_constants";
-
-/**
- * IndexedDB adapter for TTD chat storage.
- * Implements TTDPersistenceAdapter interface.
- */
-export class TTDIndexedDBAdapter {
-  /** IndexedDB database name */
-  private static idb_name = STORAGE_KEYS.IDB_TTD_CHATS;
-  /** Store key for chat data */
-  private static key = "ttdChats";
-
-  private static store = createStore(
-    `${TTDIndexedDBAdapter.idb_name}-db`,
-    `${TTDIndexedDBAdapter.idb_name}-store`,
-  );
-
-  /**
-   * Load saved chats from IndexedDB.
-   * @returns Promise resolving to saved chats array (empty if none found)
-   */
-  static async loadChats(): Promise<SavedChats> {
-    try {
-      const data = await get<SavedChats>(
-        TTDIndexedDBAdapter.key,
-        TTDIndexedDBAdapter.store,
-      );
-      return data || [];
-    } catch (error) {
-      console.warn("Failed to load TTD chats from IndexedDB:", error);
-      return [];
-    }
-  }
-
-  /**
-   * Save chats to IndexedDB.
-   * @param chats - The chats array to persist
-   */
-  static async saveChats(chats: SavedChats): Promise<void> {
-    try {
-      await set(TTDIndexedDBAdapter.key, chats, TTDIndexedDBAdapter.store);
-    } catch (error) {
-      console.warn("Failed to save TTD chats to IndexedDB:", error);
-      throw error;
-    }
-  }
-}
@@ -1,48 +0,0 @@
-import { VersionedSnapshotStore } from "@excalidraw/common";
-
-import type { FileId } from "@excalidraw/element/types";
-
-export type FileLoadingStatus = "loading" | "loaded" | "error";
-
-export class FileStatusStore {
-  private static store = new VersionedSnapshotStore<
-    Map<FileId, FileLoadingStatus>
-  >(new Map());
-
-  static getSnapshot() {
-    return this.store.getSnapshot();
-  }
-
-  static pull(sinceVersion?: number) {
-    return this.store.pull(sinceVersion);
-  }
-
-  static updateStatuses(updates: Array<[FileId, FileLoadingStatus]>) {
-    if (!updates.length) {
-      return;
-    }
-    this.store.update((prev) => {
-      let changed = false;
-      const next = new Map(prev);
-      for (const [id, status] of updates) {
-        if (next.get(id) !== status) {
-          next.set(id, status);
-          changed = true;
-        }
-      }
-      return changed ? next : prev;
-    });
-  }
-
-  static getPendingCount(statuses: Map<FileId, FileLoadingStatus>) {
-    let pending = 0;
-    let total = 0;
-    for (const status of statuses.values()) {
-      total++;
-      if (status === "loading") {
-        pending++;
-      }
-    }
-    return { pending, total };
-  }
-}
@@ -1,5 +1,5 @@
 import { reconcileElements } from "@excalidraw/excalidraw";
-import { MIME_TYPES, toBrandedType } from "@excalidraw/common";
+import { MIME_TYPES } from "@excalidraw/common";
 import { decompressData } from "@excalidraw/excalidraw/data/encode";
 import {
  encryptData,
@@ -105,8 +105,8 @@ const decryptElements = async (
  data: FirebaseStoredScene,
  roomKey: string,
 ): Promise<readonly ExcalidrawElement[]> => {
-  const ciphertext = data.ciphertext.toUint8Array() as Uint8Array<ArrayBuffer>;
-  const iv = data.iv.toUint8Array() as Uint8Array<ArrayBuffer>;
+  const ciphertext = data.ciphertext.toUint8Array();
+  const iv = data.iv.toUint8Array();

  const decrypted = await decryptData(iv, ciphertext, roomKey);
  const decodedData = new TextDecoder("utf-8").decode(
@@ -243,7 +243,7 @@ export const saveToFirebase = async (

  FirebaseSceneVersionCache.set(socket, storedElements);

-  return toBrandedType<RemoteExcalidrawElement[]>(storedElements);
+  return storedElements;
 };

 export const loadFromFirebase = async (
@@ -259,9 +259,7 @@ export const loadFromFirebase = async (
  }
  const storedScene = docSnap.data() as FirebaseStoredScene;
  const elements = getSyncableElements(
-    restoreElements(await decryptElements(storedScene, roomKey), null, {
-      deleteInvisibleElements: true,
-    }),
+    restoreElements(await decryptElements(storedScene, roomKey), null),
  );

  if (socket) {
@@ -8,14 +8,15 @@ import {
  IV_LENGTH_BYTES,
 } from "@excalidraw/excalidraw/data/encryption";
 import { serializeAsJSON } from "@excalidraw/excalidraw/data/json";
-import { isInvisiblySmallElement } from "@excalidraw/element";
-import { isInitializedImageElement } from "@excalidraw/element";
+import { restore } from "@excalidraw/excalidraw/data/restore";
+import { isInvisiblySmallElement } from "@excalidraw/element/sizeHelpers";
+import { isInitializedImageElement } from "@excalidraw/element/typeChecks";
 import { t } from "@excalidraw/excalidraw/i18n";
 import { bytesToHexString } from "@excalidraw/common";

 import type { UserIdleState } from "@excalidraw/common";
 import type { ImportedDataState } from "@excalidraw/excalidraw/data/types";
-import type { SceneBounds } from "@excalidraw/element";
+import type { SceneBounds } from "@excalidraw/element/bounds";
 import type {
  ExcalidrawElement,
  FileId,
@@ -83,13 +84,13 @@ export type SocketUpdateDataSource = {
  SCENE_INIT: {
    type: WS_SUBTYPES.INIT;
    payload: {
-      elements: readonly OrderedExcalidrawElement[];
+      elements: readonly ExcalidrawElement[];
    };
  };
  SCENE_UPDATE: {
    type: WS_SUBTYPES.UPDATE;
    payload: {
-      elements: readonly OrderedExcalidrawElement[];
+      elements: readonly ExcalidrawElement[];
    };
  };
  MOUSE_LOCATION: {
@@ -199,7 +200,7 @@ const legacy_decodeFromBackend = async ({
  };
 };

-export const importFromBackend = async (
+const importFromBackend = async (
  id: string,
  decryptionKey: string,
 ): Promise<ImportedDataState> => {
@@ -241,6 +242,40 @@ export const importFromBackend = async (
  }
 };

+export const loadScene = async (
+  id: string | null,
+  privateKey: string | null,
+  // Supply local state even if importing from backend to ensure we restore
+  // localStorage user settings which we do not persist on server.
+  // Non-optional so we don't forget to pass it even if `undefined`.
+  localDataState: ImportedDataState | undefined | null,
+) => {
+  let data;
+  if (id != null && privateKey != null) {
+    // the private key is used to decrypt the content from the server, take
+    // extra care not to leak it
+    data = restore(
+      await importFromBackend(id, privateKey),
+      localDataState?.appState,
+      localDataState?.elements,
+      { repairBindings: true, refreshDimensions: false },
+    );
+  } else {
+    data = restore(localDataState || null, null, null, {
+      repairBindings: true,
+    });
+  }
+
+  return {
+    elements: data.elements,
+    appState: data.appState,
+    // note: this will always be empty because we're not storing files
+    // in the scene database/localStorage, and instead fetch them async
+    // from a different database
+    files: data.files,
+  };
+};
+
 type ExportToBackendResult =
  | { url: null; errorMessage: string }
  | { url: string; errorMessage: null };
@@ -2,6 +2,7 @@ import {
  clearAppStateForLocalStorage,
  getDefaultAppState,
 } from "@excalidraw/excalidraw/appState";
+import { clearElementsForLocalStorage } from "@excalidraw/element";

 import type { ExcalidrawElement } from "@excalidraw/element/types";
 import type { AppState } from "@excalidraw/excalidraw/types";
@@ -49,7 +50,7 @@ export const importFromLocalStorage = () => {
  let elements: ExcalidrawElement[] = [];
  if (savedElements) {
    try {
-      elements = JSON.parse(savedElements);
+      elements = clearElementsForLocalStorage(JSON.parse(savedElements));
    } catch (error: any) {
      console.error(error);
      // Do nothing because elements array is already empty
@@ -1,9 +1,17 @@
+declare global {
+  interface Window {
+    debug: typeof Debug;
+  }
+}
+
 const lessPrecise = (num: number, precision = 5) =>
  parseFloat(num.toPrecision(precision));

 const getAvgFrameTime = (times: number[]) =>
  lessPrecise(times.reduce((a, b) => a + b) / times.length);

+const getFps = (frametime: number) => lessPrecise(1000 / frametime);
+
 export class Debug {
  public static DEBUG_LOG_TIMES = true;

@@ -16,35 +24,34 @@ export class Debug {
  private static LAST_DEBUG_LOG_CALL = 0;
  private static DEBUG_LOG_INTERVAL_ID: null | number = null;

-  private static LAST_FRAME_TIMESTAMP = 0;
-  private static FRAME_COUNT = 0;
-  private static ANIMATION_FRAME_ID: null | number = null;
-
-  private static scheduleAnimationFrame = () => {
-    if (Debug.DEBUG_LOG_INTERVAL_ID !== null) {
-      Debug.ANIMATION_FRAME_ID = requestAnimationFrame((timestamp) => {
-        if (Debug.LAST_FRAME_TIMESTAMP !== timestamp) {
-          Debug.LAST_FRAME_TIMESTAMP = timestamp;
-          Debug.FRAME_COUNT++;
-        }
-
-        if (Debug.DEBUG_LOG_INTERVAL_ID !== null) {
-          Debug.scheduleAnimationFrame();
-        }
-      });
-    }
-  };
-
  private static setupInterval = () => {
    if (Debug.DEBUG_LOG_INTERVAL_ID === null) {
      console.info("%c(starting perf recording)", "color: lime");
      Debug.DEBUG_LOG_INTERVAL_ID = window.setInterval(Debug.debugLogger, 1000);
-      Debug.scheduleAnimationFrame();
    }
    Debug.LAST_DEBUG_LOG_CALL = Date.now();
  };

  private static debugLogger = () => {
+    if (
+      Date.now() - Debug.LAST_DEBUG_LOG_CALL > 600 &&
+      Debug.DEBUG_LOG_INTERVAL_ID !== null
+    ) {
+      window.clearInterval(Debug.DEBUG_LOG_INTERVAL_ID);
+      Debug.DEBUG_LOG_INTERVAL_ID = null;
+      for (const [name, { avg }] of Object.entries(Debug.TIMES_AVG)) {
+        if (avg != null) {
+          console.info(
+            `%c${name} run avg: ${avg}ms (${getFps(avg)} fps)`,
+            "color: blue",
+          );
+        }
+      }
+      console.info("%c(stopping perf recording)", "color: red");
+      Debug.TIMES_AGGR = {};
+      Debug.TIMES_AVG = {};
+      return;
+    }
    if (Debug.DEBUG_LOG_TIMES) {
      for (const [name, { t, times }] of Object.entries(Debug.TIMES_AGGR)) {
        if (times.length) {
@@ -58,18 +65,8 @@ export class Debug {
      }
      for (const [name, { t, times, avg }] of Object.entries(Debug.TIMES_AVG)) {
        if (times.length) {
-          // const avgFrameTime = getAvgFrameTime(times);
-          const totalTime = times.reduce((a, b) => a + b);
-          const avgFrameTime = lessPrecise(totalTime / Debug.FRAME_COUNT);
-          console.info(
-            name,
-            `- ${times.length} calls - ${avgFrameTime}ms/frame across ${
-              Debug.FRAME_COUNT
-            } frames (${lessPrecise(
-              (avgFrameTime / 16.67) * 100,
-              1,
-            )}% of frame budget)`,
-          );
+          const avgFrameTime = getAvgFrameTime(times);
+          console.info(name, `${avgFrameTime}ms (${getFps(avgFrameTime)} fps)`);
          Debug.TIMES_AVG[name] = {
            t,
            times: [],
@@ -79,24 +76,6 @@ export class Debug {
        }
      }
    }
-    Debug.FRAME_COUNT = 0;
-
-    // Check for stop condition after logging
-    if (
-      Date.now() - Debug.LAST_DEBUG_LOG_CALL > 600 &&
-      Debug.DEBUG_LOG_INTERVAL_ID !== null
-    ) {
-      console.info("%c(stopping perf recording)", "color: red");
-      window.clearInterval(Debug.DEBUG_LOG_INTERVAL_ID);
-      window.cancelAnimationFrame(Debug.ANIMATION_FRAME_ID!);
-      Debug.ANIMATION_FRAME_ID = null;
-      Debug.FRAME_COUNT = 0;
-      Debug.LAST_FRAME_TIMESTAMP = 0;
-
-      Debug.DEBUG_LOG_INTERVAL_ID = null;
-      Debug.TIMES_AGGR = {};
-      Debug.TIMES_AVG = {};
-    }
  };

  public static logTime = (time?: number, name = "default") => {
@@ -130,7 +109,7 @@ export class Debug {
      return (...args: T) => {
        const t0 = performance.now();
        const ret = fn(...args);
-        Debug[type](performance.now() - t0, name);
+        Debug.logTime(performance.now() - t0, name);
        return ret;
      };
    };
@@ -151,70 +130,6 @@ export class Debug {
      return ret;
    };
  };
-
-  private static CHANGED_CACHE: Record<string, Record<string, unknown>> = {};
-
-  public static logChanged(name: string, obj: Record<string, unknown>) {
-    const prev = Debug.CHANGED_CACHE[name];
-
-    Debug.CHANGED_CACHE[name] = obj;
-
-    if (!prev) {
-      return;
-    }
-
-    const allKeys = new Set([...Object.keys(prev), ...Object.keys(obj)]);
-    const changed: Record<string, { prev: unknown; next: unknown }> = {};
-
-    for (const key of allKeys) {
-      const prevVal = prev[key];
-      const nextVal = obj[key];
-      if (!deepEqual(prevVal, nextVal)) {
-        changed[key] = { prev: prevVal, next: nextVal };
-      }
-    }
-
-    if (Object.keys(changed).length > 0) {
-      console.info(`[${name}] changed:`, changed);
-    }
-  }
-}
-
-function deepEqual(a: unknown, b: unknown): boolean {
-  if (Object.is(a, b)) {
-    return true;
-  }
-
-  if (
-    a === null ||
-    b === null ||
-    typeof a !== "object" ||
-    typeof b !== "object"
-  ) {
-    return false;
-  }
-
-  if (Array.isArray(a) !== Array.isArray(b)) {
-    return false;
-  }
-
-  const keysA = Object.keys(a as Record<string, unknown>);
-  const keysB = Object.keys(b as Record<string, unknown>);
-
-  if (keysA.length !== keysB.length) {
-    return false;
-  }
-
-  for (const key of keysA) {
-    if (
-      !deepEqual(
-        (a as Record<string, unknown>)[key],
-        (b as Record<string, unknown>)[key],
-      )
-    ) {
-      return false;
-    }
-  }
-
-  return true;
 }
+//@ts-ignore
+window.debug = Debug;
@@ -2,7 +2,7 @@
 <html lang="en">
  <head>
    <meta charset="utf-8" />
-    <title>Excalidraw Whiteboard</title>
+    <title>Excalidraw | Hand-drawn look & feel • Collaborative • Secure</title>
    <meta
      name="viewport"
      content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no, viewport-fit=cover, shrink-to-fit=no"
@@ -14,7 +14,7 @@
    <!-- Primary Meta Tags -->
    <meta
      name="title"
-      content="Free, collaborative whiteboard • Hand-drawn look & feel | Excalidraw"
+      content="Excalidraw — Collaborative whiteboarding made easy"
    />
    <meta
      name="description"
@@ -1,5 +1,3 @@
-@import "../packages/excalidraw/css/variables.module.scss";
-
 .excalidraw {
  --color-primary-contrast-offset: #625ee0; // to offset Chubb illusion

@@ -7,6 +5,12 @@
    --color-primary-contrast-offset: #726dff; // to offset Chubb illusion
  }

+  .top-right-ui {
+    display: flex;
+    justify-content: center;
+    align-items: flex-start;
+  }
+
  .footer-center {
    justify-content: flex-end;
    margin-top: auto;
@@ -54,7 +58,7 @@
    }
  }

-  .alert {
+  .collab-offline-warning {
    pointer-events: none;
    position: absolute;
    top: 6.5rem;
@@ -65,18 +69,10 @@
    text-align: center;
    line-height: 1.5;
    border-radius: var(--border-radius-md);
+    background-color: var(--color-warning);
+    color: var(--color-text-warning);
    z-index: 6;
    white-space: pre;
-
-    &--warning {
-      background-color: var(--color-warning);
-      color: var(--color-text-warning);
-    }
-
-    &--danger {
-      background-color: var(--color-danger-dark);
-      color: var(--color-danger-text);
-    }
  }
 }

@@ -86,31 +82,22 @@
  }
 }

-.plus-banner {
+.plus-button {
  display: flex;
  justify-content: center;
  cursor: pointer;
  align-items: center;
  border: 1px solid var(--color-primary);
-  padding: 0.5rem 0.875rem;
+  padding: 0.5rem 0.75rem;
  border-radius: var(--border-radius-lg);
  background-color: var(--island-bg-color);
+  color: var(--color-primary) !important;
  text-decoration: none !important;

-  font-family: var(--ui-font);
-  font-size: 0.8333rem;
+  font-size: 0.75rem;
  box-sizing: border-box;
  height: var(--lg-button-size);

-  border: none;
-  box-shadow: 0 0 0 1px var(--color-surface-lowest);
-  background-color: var(--color-surface-low);
-  color: var(--button-color, var(--color-on-surface)) !important;
-
-  &:active {
-    box-shadow: 0 0 0 1px var(--color-brand-active);
-  }
-
  &:hover {
    background-color: var(--color-primary);
    color: white !important;
@@ -122,7 +109,7 @@
 }

 .theme--dark {
-  .plus-banner {
+  .plus-button {
    &:hover {
      color: black !important;
    }
@@ -23,7 +23,7 @@
    ]
  },
  "engines": {
-    "node": ">=18.0.0"
+    "node": "18.0.0 - 22.x.x"
  },
  "dependencies": {
    "@excalidraw/random-username": "1.0.0",
@@ -36,7 +36,6 @@
    "react": "19.0.0",
    "react-dom": "19.0.0",
    "socket.io-client": "4.7.2",
-    "uqr": "0.1.2",
    "vite-plugin-html": "3.2.2"
  },
  "prettier": "@excalidraw/prettier-config",
@@ -1,4 +1,3 @@
-import { getFeatureFlag } from "@excalidraw/common";
 import * as Sentry from "@sentry/browser";
 import callsites from "callsites";

@@ -34,7 +33,6 @@ Sentry.init({
    Sentry.captureConsoleIntegration({
      levels: ["error"],
    }),
-    Sentry.featureFlagsIntegration(),
  ],
  beforeSend(event) {
    if (event.request?.url) {
@@ -81,14 +79,3 @@ Sentry.init({
    return event;
  },
 });
-
-const flagsIntegration =
-  Sentry.getClient()?.getIntegrationByName<Sentry.FeatureFlagsIntegration>(
-    "FeatureFlags",
-  );
-if (flagsIntegration) {
-  flagsIntegration.addFeatureFlag(
-    "COMPLEX_BINDINGS",
-    getFeatureFlag("COMPLEX_BINDINGS"),
-  );
-}
@@ -1,56 +0,0 @@
-import { useEffect, useState } from "react";
-import Spinner from "@excalidraw/excalidraw/components/Spinner";
-
-interface QRCodeProps {
-  value: string;
-}
-
-export const QRCode = ({ value }: QRCodeProps) => {
-  const [svgData, setSvgData] = useState<string | null>(null);
-  const [error, setError] = useState<boolean>(false);
-
-  useEffect(() => {
-    let mounted = true;
-
-    import("./qrcode.chunk")
-      .then(({ generateQRCodeSVG }) => {
-        if (mounted) {
-          try {
-            setSvgData(generateQRCodeSVG(value));
-          } catch {
-            setError(true);
-          }
-        }
-      })
-      .catch(() => {
-        if (mounted) {
-          setError(true);
-        }
-      });
-
-    return () => {
-      mounted = false;
-    };
-  }, [value]);
-
-  if (error) {
-    return null;
-  }
-
-  if (!svgData) {
-    return (
-      <div className="ShareDialog__active__qrcode ShareDialog__active__qrcode--loading">
-        <Spinner />
-      </div>
-    );
-  }
-
-  return (
-    <div
-      className="ShareDialog__active__qrcode"
-      role="img"
-      aria-label="QR code for collaboration link"
-      dangerouslySetInnerHTML={{ __html: svgData }}
-    />
-  );
-};
@@ -140,31 +140,6 @@
        gap: 0.75rem;
      }

-      &__qrcode {
-        display: flex;
-        justify-content: center;
-        align-items: center;
-        align-self: center;
-        padding: 1rem;
-        background: #fff;
-        border-radius: 0.5rem;
-        border: 1px solid #e0e0e0;
-
-        $size: 150px;
-        width: $size;
-        height: $size;
-
-        & svg {
-          width: $size;
-          height: $size;
-        }
-
-        &--loading {
-          background: var(--island-bg-color);
-          border: 1px solid var(--dialog-border-color);
-        }
-      }
-
      &__description {
        border-top: 1px solid var(--color-gray-20);

@@ -22,7 +22,6 @@ import { atom, useAtom, useAtomValue } from "../app-jotai";
 import { activeRoomLinkAtom } from "../collab/Collab";

 import "./ShareDialog.scss";
-import { QRCode } from "./QRCode";

 import type { CollabAPI } from "../collab/Collab";

@@ -143,7 +142,6 @@ const ActiveRoomDialog = ({
          }}
        />
      </div>
-      <QRCode value={activeRoomLink} />
      <div className="ShareDialog__active__description">
        <p>
          <span
@@ -1,5 +0,0 @@
-import { renderSVG } from "uqr";
-
-export const generateQRCodeSVG = (text: string): string => {
-  return renderSVG(text);
-};
@@ -17,15 +17,30 @@ describe("Test MobileMenu", () => {

  beforeEach(async () => {
    await render(<ExcalidrawApp />);
-    h.app.refreshEditorInterface();
+    // @ts-ignore
+    h.app.refreshViewportBreakpoints();
+    // @ts-ignore
+    h.app.refreshEditorBreakpoints();
  });

  afterAll(() => {
    restoreOriginalGetBoundingClientRect();
  });

-  it("should set editor interface correctly", () => {
-    expect(h.app.editorInterface.formFactor).toBe("phone");
+  it("should set device correctly", () => {
+    expect(h.app.device).toMatchInlineSnapshot(`
+      {
+        "editor": {
+          "canFitSidebar": false,
+          "isMobile": true,
+        },
+        "isTouchScreen": false,
+        "viewport": {
+          "isLandscape": false,
+          "isMobile": true,
+        },
+      }
+    `);
  });

  it("should initialize with welcome screen and hide once user interacts", async () => {
@@ -50,11 +50,7 @@ exports[`Test MobileMenu > should initialize with welcome screen and hide once u
  <div
    class="welcome-screen-center__heading welcome-screen-decor excalifont"
  >
-    Your drawings are saved in your browser's storage.
-    <br />
-    Browser storage can be cleared unexpectedly.
-    <br />
-    Save your work to a file regularly to avoid losing it.
+    All your data is saved locally in your browser.
  </div>
  <div
    class="welcome-screen-menu"
@@ -202,7 +198,7 @@ exports[`Test MobileMenu > should initialize with welcome screen and hide once u
    <a
      class="welcome-screen-menu-item "
      href="undefined/plus?utm_source=excalidraw&utm_medium=app&utm_content=welcomeScreenGuest"
-      rel="noopener"
+      rel="noreferrer"
      target="_blank"
    >
      <div
@@ -3,15 +3,11 @@ import {
  createRedoAction,
  createUndoAction,
 } from "@excalidraw/excalidraw/actions/actionHistory";
-import { syncInvalidIndices } from "@excalidraw/element";
+import { syncInvalidIndices } from "@excalidraw/element/fractionalIndex";
 import { API } from "@excalidraw/excalidraw/tests/helpers/api";
 import { act, render, waitFor } from "@excalidraw/excalidraw/tests/test-utils";
 import { vi } from "vitest";

-import { StoreIncrement } from "@excalidraw/element";
-
-import type { DurableIncrement, EphemeralIncrement } from "@excalidraw/element";
-
 import ExcalidrawApp from "../App";

 const { h } = window;
@@ -69,79 +65,6 @@ vi.mock("socket.io-client", () => {
 * i.e. multiplayer history tests could be a good first candidate, as we could test both history stacks simultaneously.
 */
 describe("collaboration", () => {
-  it("should emit two ephemeral increments even though updates get batched", async () => {
-    const durableIncrements: DurableIncrement[] = [];
-    const ephemeralIncrements: EphemeralIncrement[] = [];
-
-    await render(<ExcalidrawApp />);
-
-    h.store.onStoreIncrementEmitter.on((increment) => {
-      if (StoreIncrement.isDurable(increment)) {
-        durableIncrements.push(increment);
-      } else {
-        ephemeralIncrements.push(increment);
-      }
-    });
-
-    // eslint-disable-next-line dot-notation
-    expect(h.store["scheduledMicroActions"].length).toBe(0);
-    expect(durableIncrements.length).toBe(0);
-    expect(ephemeralIncrements.length).toBe(0);
-
-    const rectProps = {
-      type: "rectangle",
-      id: "A",
-      height: 200,
-      width: 100,
-      x: 0,
-      y: 0,
-    } as const;
-
-    const rect = API.createElement({ ...rectProps });
-
-    API.updateScene({
-      elements: [rect],
-      captureUpdate: CaptureUpdateAction.IMMEDIATELY,
-    });
-
-    await waitFor(() => {
-      // expect(commitSpy).toHaveBeenCalledTimes(1);
-      expect(durableIncrements.length).toBe(1);
-    });
-
-    // simulate two batched remote updates
-    act(() => {
-      h.app.updateScene({
-        elements: [newElementWith(h.elements[0], { x: 100 })],
-        captureUpdate: CaptureUpdateAction.NEVER,
-      });
-      h.app.updateScene({
-        elements: [newElementWith(h.elements[0], { x: 200 })],
-        captureUpdate: CaptureUpdateAction.NEVER,
-      });
-
-      // we scheduled two micro actions,
-      // which confirms they are going to be executed as part of one batched component update
-      // eslint-disable-next-line dot-notation
-      expect(h.store["scheduledMicroActions"].length).toBe(2);
-    });
-
-    await waitFor(() => {
-      // altough the updates get batched,
-      // we expect two ephemeral increments for each update,
-      // and each such update should have the expected change
-      expect(ephemeralIncrements.length).toBe(2);
-      expect(ephemeralIncrements[0].change.elements.A).toEqual(
-        expect.objectContaining({ x: 100 }),
-      );
-      expect(ephemeralIncrements[1].change.elements.A).toEqual(
-        expect.objectContaining({ x: 200 }),
-      );
-      // eslint-disable-next-line dot-notation
-      expect(h.store["scheduledMicroActions"].length).toBe(0);
-    });
-  });
-
  it("should allow to undo / redo even on force-deleted elements", async () => {
    await render(<ExcalidrawApp />);
    const rect1Props = {
@@ -199,13 +122,12 @@ describe("collaboration", () => {
      expect(h.elements).toEqual([expect.objectContaining(rect1Props)]);
    });

-    const undoAction = createUndoAction(h.history);
+    const undoAction = createUndoAction(h.history, h.store);
    act(() => h.app.actionManager.executeAction(undoAction));

    // with explicit undo (as addition) we expect our item to be restored from the snapshot!
    await waitFor(() => {
      expect(API.getUndoStack().length).toBe(1);
-      expect(API.getRedoStack().length).toBe(1);
      expect(API.getSnapshot()).toEqual([
        expect.objectContaining(rect1Props),
        expect.objectContaining({ ...rect2Props, isDeleted: false }),
@@ -232,7 +154,7 @@ describe("collaboration", () => {
      expect(h.elements).toEqual([expect.objectContaining(rect1Props)]);
    });

-    const redoAction = createRedoAction(h.history);
+    const redoAction = createRedoAction(h.history, h.store);
    act(() => h.app.actionManager.executeAction(redoAction));

    // with explicit redo (as removal) we again restore the element from the snapshot!
@@ -248,5 +170,79 @@ describe("collaboration", () => {
        expect.objectContaining({ ...rect2Props, isDeleted: true }),
      ]);
    });
+
+    act(() => h.app.actionManager.executeAction(undoAction));
+
+    // simulate local update
+    API.updateScene({
+      elements: syncInvalidIndices([
+        h.elements[0],
+        newElementWith(h.elements[1], { x: 100 }),
+      ]),
+      captureUpdate: CaptureUpdateAction.IMMEDIATELY,
+    });
+
+    await waitFor(() => {
+      expect(API.getUndoStack().length).toBe(2);
+      expect(API.getRedoStack().length).toBe(0);
+      expect(API.getSnapshot()).toEqual([
+        expect.objectContaining(rect1Props),
+        expect.objectContaining({ ...rect2Props, isDeleted: false, x: 100 }),
+      ]);
+      expect(h.elements).toEqual([
+        expect.objectContaining(rect1Props),
+        expect.objectContaining({ ...rect2Props, isDeleted: false, x: 100 }),
+      ]);
+    });
+
+    act(() => h.app.actionManager.executeAction(undoAction));
+
+    // we expect to iterate the stack to the first visible change
+    await waitFor(() => {
+      expect(API.getUndoStack().length).toBe(1);
+      expect(API.getRedoStack().length).toBe(1);
+      expect(API.getSnapshot()).toEqual([
+        expect.objectContaining(rect1Props),
+        expect.objectContaining({ ...rect2Props, isDeleted: false, x: 0 }),
+      ]);
+      expect(h.elements).toEqual([
+        expect.objectContaining(rect1Props),
+        expect.objectContaining({ ...rect2Props, isDeleted: false, x: 0 }),
+      ]);
+    });
+
+    // simulate force deleting the element remotely
+    API.updateScene({
+      elements: syncInvalidIndices([rect1]),
+      captureUpdate: CaptureUpdateAction.NEVER,
+    });
+
+    // snapshot was correctly updated and marked the element as deleted
+    await waitFor(() => {
+      expect(API.getUndoStack().length).toBe(1);
+      expect(API.getRedoStack().length).toBe(1);
+      expect(API.getSnapshot()).toEqual([
+        expect.objectContaining(rect1Props),
+        expect.objectContaining({ ...rect2Props, isDeleted: true, x: 0 }),
+      ]);
+      expect(h.elements).toEqual([expect.objectContaining(rect1Props)]);
+    });
+
+    act(() => h.app.actionManager.executeAction(redoAction));
+
+    // with explicit redo (as update) we again restored the element from the snapshot!
+    await waitFor(() => {
+      expect(API.getUndoStack().length).toBe(2);
+      expect(API.getRedoStack().length).toBe(0);
+      expect(API.getSnapshot()).toEqual([
+        expect.objectContaining({ id: "A", isDeleted: false }),
+        expect.objectContaining({ id: "B", isDeleted: true, x: 100 }),
+      ]);
+      expect(h.history.isRedoStackEmpty).toBeTruthy();
+      expect(h.elements).toEqual([
+        expect.objectContaining({ id: "A", isDeleted: false }),
+        expect.objectContaining({ id: "B", isDeleted: true, x: 100 }),
+      ]);
+    });
  });
 });
@@ -102,14 +102,6 @@ export default defineConfig(({ mode }) => {
              // Taking the substring after "locales/"
              return `locales/${id.substring(index + 8)}`;
            }
-
-            if (id.includes("@excalidraw/mermaid-to-excalidraw")) {
-              return "mermaid-to-excalidraw";
-            }
-
-            if (id.includes("@codemirror/") || id.includes("@lezer/")) {
-              return "codemirror.chunk";
-            }
          },
        },
      },
@@ -154,11 +146,6 @@ export default defineConfig(({ mode }) => {
            "**/locales/**",
            "service-worker.js",
            "**/*.chunk-*.js",
-            // CodeMirrorEditor can't be assigned a `.chunk` name via
-            // manualChunks because Rollup would hoist shared deps (React)
-            // via a static import from the main bundle, defeating lazy
-            // loading. So we exclude it by name instead.
-            "**/CodeMirrorEditor-*.js",
          ],
          runtimeCaching: [
            {
@@ -198,7 +185,7 @@ export default defineConfig(({ mode }) => {
              },
            },
            {
-              urlPattern: new RegExp("(.chunk-.+|CodeMirrorEditor-.+)\\.js"),
+              urlPattern: new RegExp(".chunk-.+.js"),
              handler: "CacheFirst",
              options: {
                cacheName: "chunk",
@@ -209,7 +196,6 @@ export default defineConfig(({ mode }) => {
              },
            },
          ],
-          maximumFileSizeToCacheInBytes: 2.3 * 1024 ** 2, // 2.3MB
        },
        manifest: {
          short_name: "Excalidraw",
@@ -11,9 +11,11 @@
    "@babel/preset-env": "7.26.9",
    "@excalidraw/eslint-config": "1.0.3",
    "@excalidraw/prettier-config": "1.0.2",
+    "@playwright/experimental-ct-react": "1.52.0",
    "@types/chai": "4.3.0",
    "@types/jest": "27.4.0",
    "@types/lodash.throttle": "4.1.7",
+    "@types/node": "22.14.1",
    "@types/react": "19.0.10",
    "@types/react-dom": "19.0.4",
    "@types/socket.io-client": "3.0.0",
@@ -33,8 +35,7 @@
    "pepjs": "0.5.3",
    "prettier": "2.6.2",
    "rewire": "6.0.0",
-    "rimraf": "^5.0.0",
-    "typescript": "5.9.3",
+    "typescript": "4.9.4",
    "vite": "5.0.12",
    "vite-plugin-checker": "0.7.2",
    "vite-plugin-ejs": "1.7.0",
@@ -44,7 +45,7 @@
    "vitest-canvas-mock": "0.3.3"
  },
  "engines": {
-    "node": ">=18.0.0"
+    "node": "18.0.0 - 22.x.x"
  },
  "homepage": ".",
  "prettier": "@excalidraw/prettier-config",
@@ -52,17 +53,13 @@
    "build-node": "node ./scripts/build-node.js",
    "build:app:docker": "yarn --cwd ./excalidraw-app build:app:docker",
    "build:app": "yarn --cwd ./excalidraw-app build:app",
-    "build:common": "yarn --cwd ./packages/common build:esm",
-    "build:element": "yarn --cwd ./packages/element build:esm",
-    "build:excalidraw": "yarn --cwd ./packages/excalidraw build:esm",
-    "build:math": "yarn --cwd ./packages/math build:esm",
-    "build:packages": "yarn build:common && yarn build:math && yarn build:element && yarn build:excalidraw",
+    "build:package": "yarn --cwd ./packages/excalidraw build:esm",
    "build:version": "yarn --cwd ./excalidraw-app build:version",
    "build": "yarn --cwd ./excalidraw-app build",
    "build:preview": "yarn --cwd ./excalidraw-app build:preview",
    "start": "yarn --cwd ./excalidraw-app start",
    "start:production": "yarn --cwd ./excalidraw-app start:production",
-    "start:example": "yarn build:packages && yarn --cwd ./examples/with-script-in-browser start",
+    "start:example": "yarn build:package && yarn --cwd ./examples/with-script-in-browser start",
    "test:all": "yarn test:typecheck && yarn test:code && yarn test:other && yarn test:app --watch=false",
    "test:app": "vitest",
    "test:code": "eslint --max-warnings=0 --ext .js,.ts,.tsx .",
@@ -80,13 +77,13 @@
    "locales-coverage:description": "node scripts/locales-coverage-description.js",
    "prepare": "husky install",
    "prettier": "prettier \"**/*.{css,scss,json,md,html,yml}\" --ignore-path=.eslintignore",
-    "release": "node scripts/release.js",
-    "release:test": "node scripts/release.js --tag=test",
-    "release:next": "node scripts/release.js --tag=next",
-    "release:latest": "node scripts/release.js --tag=latest",
-    "rm:build": "rimraf --glob excalidraw-app/build excalidraw-app/dist excalidraw-app/dev-dist packages/*/dist packages/*/build examples/*/build examples/*/dist",
-    "rm:node_modules": "rimraf --glob node_modules excalidraw-app/node_modules packages/*/node_modules",
-    "clean-install": "yarn rm:node_modules && yarn install"
+    "autorelease": "node scripts/autorelease.js",
+    "prerelease:excalidraw": "node scripts/prerelease.js",
+    "release:excalidraw": "node scripts/release.js",
+    "rm:build": "rm -rf excalidraw-app/{build,dist,dev-dist} && rm -rf packages/*/{dist,build} && rm -rf examples/*/{build,dist}",
+    "rm:node_modules": "rm -rf node_modules && rm -rf excalidraw-app/node_modules && rm -rf packages/*/node_modules",
+    "clean-install": "yarn rm:node_modules && yarn install",
+    "test-ct": "playwright test -c playwright-ct.config.ts"
  },
  "resolutions": {
    "strip-ansi": "6.0.1"
@@ -1,6 +1,6 @@
 {
  "name": "@excalidraw/common",
-  "version": "0.18.0",
+  "version": "0.1.0",
  "type": "module",
  "types": "./dist/types/common/src/index.d.ts",
  "main": "./dist/prod/index.js",
@@ -13,10 +13,7 @@
      "default": "./dist/prod/index.js"
    },
    "./*": {
-      "types": "./dist/types/common/src/*.d.ts",
-      "development": "./dist/dev/index.js",
-      "production": "./dist/prod/index.js",
-      "default": "./dist/prod/index.js"
+      "types": "./../common/dist/types/common/src/*.d.ts"
    }
  },
  "files": [
@@ -53,13 +50,7 @@
  "bugs": "https://github.com/excalidraw/excalidraw/issues",
  "repository": "https://github.com/excalidraw/excalidraw",
  "scripts": {
-    "gen:types": "rimraf types && tsc",
-    "build:esm": "rimraf dist && node ../../scripts/buildBase.js && yarn gen:types"
-  },
-  "dependencies": {
-    "tinycolor2": "1.6.0"
-  },
-  "devDependencies": {
-    "@types/tinycolor2": "1.4.6"
+    "gen:types": "rm -rf types && tsc",
+    "build:esm": "rm -rf dist && node ../../scripts/buildBase.js && yarn gen:types"
  }
 }
@@ -1,185 +0,0 @@
-// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
-
-exports[`COLOR_PALETTE > color palette doesn't regress 1`] = `
-{
-  "black": "#1e1e1e",
-  "blue": [
-    "#e7f5ff",
-    "#a5d8ff",
-    "#4dabf7",
-    "#228be6",
-    "#1971c2",
-  ],
-  "bronze": [
-    "#f8f1ee",
-    "#eaddd7",
-    "#d2bab0",
-    "#a18072",
-    "#846358",
-  ],
-  "cyan": [
-    "#e3fafc",
-    "#99e9f2",
-    "#3bc9db",
-    "#15aabf",
-    "#0c8599",
-  ],
-  "grape": [
-    "#f8f0fc",
-    "#eebefa",
-    "#da77f2",
-    "#be4bdb",
-    "#9c36b5",
-  ],
-  "gray": [
-    "#f8f9fa",
-    "#e9ecef",
-    "#ced4da",
-    "#868e96",
-    "#343a40",
-  ],
-  "green": [
-    "#ebfbee",
-    "#b2f2bb",
-    "#69db7c",
-    "#40c057",
-    "#2f9e44",
-  ],
-  "orange": [
-    "#fff4e6",
-    "#ffd8a8",
-    "#ffa94d",
-    "#fd7e14",
-    "#e8590c",
-  ],
-  "pink": [
-    "#fff0f6",
-    "#fcc2d7",
-    "#f783ac",
-    "#e64980",
-    "#c2255c",
-  ],
-  "red": [
-    "#fff5f5",
-    "#ffc9c9",
-    "#ff8787",
-    "#fa5252",
-    "#e03131",
-  ],
-  "teal": [
-    "#e6fcf5",
-    "#96f2d7",
-    "#38d9a9",
-    "#12b886",
-    "#099268",
-  ],
-  "transparent": "transparent",
-  "violet": [
-    "#f3f0ff",
-    "#d0bfff",
-    "#9775fa",
-    "#7950f2",
-    "#6741d9",
-  ],
-  "white": "#ffffff",
-  "yellow": [
-    "#fff9db",
-    "#ffec99",
-    "#ffd43b",
-    "#fab005",
-    "#f08c00",
-  ],
-}
-`;
-
-exports[`applyDarkModeFilter > COLOR_PALETTE regression tests > matches snapshot for all palette colors 1`] = `
-{
-  "black": "#d3d3d3",
-  "blue": [
-    "#121e26",
-    "#154162",
-    "#2273b4",
-    "#3791e0",
-    "#56a2e8",
-  ],
-  "bronze": [
-    "#221c1a",
-    "#362b26",
-    "#5a463d",
-    "#917569",
-    "#a98d84",
-  ],
-  "cyan": [
-    "#0a1e20",
-    "#004149",
-    "#007281",
-    "#0f8fa1",
-    "#3da5b6",
-  ],
-  "grape": [
-    "#211a25",
-    "#5b3165",
-    "#a954be",
-    "#d471ed",
-    "#e28af8",
-  ],
-  "gray": [
-    "#161718",
-    "#202325",
-    "#33383d",
-    "#6e757c",
-    "#b7bcc1",
-  ],
-  "green": [
-    "#0f1d12",
-    "#043b0c",
-    "#056715",
-    "#16842a",
-    "#39994b",
-  ],
-  "orange": [
-    "#22190d",
-    "#4c2b01",
-    "#924800",
-    "#cd6005",
-    "#f17634",
-  ],
-  "pink": [
-    "#26191e",
-    "#602e40",
-    "#b04d70",
-    "#f56e9d",
-    "#ff8dbc",
-  ],
-  "red": [
-    "#1f1717",
-    "#5a2c2c",
-    "#b44d4d",
-    "#fa6969",
-    "#ff8383",
-  ],
-  "teal": [
-    "#0a1d17",
-    "#00422b",
-    "#00744b",
-    "#039267",
-    "#32a783",
-  ],
-  "transparent": "#ededed00",
-  "violet": [
-    "#1f1c29",
-    "#4a3b72",
-    "#8a6cdf",
-    "#a885ff",
-    "#b595ff",
-  ],
-  "white": "#121212",
-  "yellow": [
-    "#1e1900",
-    "#362600",
-    "#5f3a00",
-    "#905000",
-    "#b86200",
-  ],
-}
-`;
@@ -1,74 +0,0 @@
-import { AppEventBus } from "./appEventBus";
-
-type TestEvents = {
-  initialize: [api: number];
-  pointerUp: [pointerId: string];
-  viewState: [zoom: number];
-};
-
-const behavior = {
-  initialize: { cardinality: "once", replay: "last" },
-  pointerUp: { cardinality: "many", replay: "none" },
-  viewState: { cardinality: "many", replay: "last" },
-} as const;
-
-const flushMicrotasks = async () => Promise.resolve();
-
-describe("AppEventBus", () => {
-  it("replays once events to late callback and Promise subscribers", async () => {
-    const bus = new AppEventBus<TestEvents, typeof behavior>(behavior);
-    bus.emit("initialize", 42);
-
-    const calls: number[] = [];
-    bus.on("initialize", (value) => {
-      calls.push(value);
-    });
-
-    expect(calls).toEqual([]);
-    await flushMicrotasks();
-    expect(calls).toEqual([42]);
-
-    await expect(bus.on("initialize")).resolves.toBe(42);
-  });
-
-  it("does not replay stream events to late subscribers", async () => {
-    const bus = new AppEventBus<TestEvents, typeof behavior>(behavior);
-    bus.emit("pointerUp", "first");
-
-    const calls: string[] = [];
-    bus.on("pointerUp", (pointerId) => {
-      calls.push(pointerId);
-    });
-
-    await flushMicrotasks();
-    expect(calls).toEqual([]);
-
-    bus.emit("pointerUp", "second");
-    expect(calls).toEqual(["second"]);
-  });
-
-  it("replays replay-last stream events and stays subscribed", async () => {
-    const bus = new AppEventBus<TestEvents, typeof behavior>(behavior);
-    bus.emit("viewState", 1);
-
-    const calls: number[] = [];
-    bus.on("viewState", (zoom) => {
-      calls.push(zoom);
-    });
-
-    await flushMicrotasks();
-    expect(calls).toEqual([1]);
-
-    bus.emit("viewState", 2);
-    expect(calls).toEqual([1, 2]);
-  });
-
-  it("throws when emitting a once event twice", () => {
-    const bus = new AppEventBus<TestEvents, typeof behavior>(behavior);
-    bus.emit("initialize", 1);
-
-    expect(() => {
-      bus.emit("initialize", 2);
-    }).toThrow('Event "initialize" can only be emitted once');
-  });
-});
@@ -1,136 +0,0 @@
-import type { UnsubscribeCallback } from "@excalidraw/excalidraw/types";
-
-import { Emitter } from "./emitter";
-import { isProdEnv } from "./utils";
-
-export type AppEventPayloadMap = Record<string, unknown[]>;
-
-export type AppEventBehavior = {
-  cardinality: "once" | "many";
-  replay: "none" | "last";
-};
-
-export type AppEventBehaviorMap<Events extends AppEventPayloadMap> = {
-  [K in keyof Events]: AppEventBehavior;
-};
-
-type AwaitableAppEventKeys<
-  Events extends AppEventPayloadMap,
-  Behavior extends AppEventBehaviorMap<Events>,
-> = {
-  [K in keyof Events]: Behavior[K]["cardinality"] extends "once"
-    ? Behavior[K]["replay"] extends "last"
-      ? K
-      : never
-    : never;
-}[keyof Events];
-
-type AppEventPromiseValue<Args extends any[]> = Args extends [infer Only]
-  ? Only
-  : Args;
-
-export class AppEventBus<
-  Events extends AppEventPayloadMap,
-  Behavior extends AppEventBehaviorMap<Events>,
-> {
-  private readonly emitters = new Map<keyof Events, Emitter<any>>();
-  private readonly lastPayload = new Map<keyof Events, any[]>();
-  private readonly emittedOnce = new Set<keyof Events>();
-
-  constructor(private readonly behavior: Behavior) {}
-
-  private getEmitter<K extends keyof Events>(name: K): Emitter<Events[K]> {
-    let emitter = this.emitters.get(name);
-    if (!emitter) {
-      emitter = new Emitter<any>();
-      this.emitters.set(name, emitter);
-    }
-    return emitter as Emitter<Events[K]>;
-  }
-
-  private toPromiseValue<Args extends any[]>(
-    args: Args,
-  ): AppEventPromiseValue<Args> {
-    return (args.length === 1 ? args[0] : args) as AppEventPromiseValue<Args>;
-  }
-
-  public on<K extends keyof Events>(
-    name: K,
-    callback: (...args: Events[K]) => void,
-  ): UnsubscribeCallback;
-  public on<K extends AwaitableAppEventKeys<Events, Behavior>>(
-    name: K,
-  ): Promise<AppEventPromiseValue<Events[K]>>;
-  public on<K extends keyof Events>(
-    name: K,
-    callback?: (...args: Events[K]) => void,
-  ): UnsubscribeCallback | Promise<AppEventPromiseValue<Events[K]>> {
-    const eventBehavior = this.behavior[name];
-    const cachedPayload = this.lastPayload.get(name) as Events[K] | undefined;
-
-    if (callback) {
-      if (eventBehavior.replay === "last" && cachedPayload) {
-        queueMicrotask(() => callback(...cachedPayload));
-
-        if (eventBehavior.cardinality === "once") {
-          return () => {};
-        }
-      }
-
-      return this.getEmitter(name).on(callback);
-    }
-
-    if (
-      eventBehavior.cardinality !== "once" ||
-      eventBehavior.replay !== "last"
-    ) {
-      throw new Error(`Event "${String(name)}" requires a callback`);
-    }
-
-    if (cachedPayload) {
-      return Promise.resolve(this.toPromiseValue(cachedPayload));
-    }
-
-    return new Promise<AppEventPromiseValue<Events[K]>>((resolve) => {
-      this.getEmitter(name).once((...args: Events[K]) => {
-        resolve(this.toPromiseValue(args));
-      });
-    });
-  }
-
-  public emit<K extends keyof Events>(name: K, ...args: Events[K]) {
-    const eventBehavior = this.behavior[name];
-
-    if (!isProdEnv()) {
-      if (eventBehavior.cardinality === "once") {
-        if (this.emittedOnce.has(name)) {
-          throw new Error(`Event "${String(name)}" can only be emitted once`);
-        }
-        this.emittedOnce.add(name);
-      }
-    }
-
-    if (eventBehavior.replay === "last") {
-      this.lastPayload.set(name, args);
-    }
-
-    try {
-      this.getEmitter(name).trigger(...args);
-    } finally {
-      if (eventBehavior.cardinality === "once") {
-        this.getEmitter(name).clear();
-      }
-    }
-  }
-
-  public clear() {
-    this.lastPayload.clear();
-    this.emittedOnce.clear();
-
-    for (const emitter of this.emitters.values()) {
-      emitter.clear();
-    }
-
-    this.emitters.clear();
-  }
-}
@@ -5,18 +5,17 @@ export class BinaryHeap<T> {

  sinkDown(idx: number) {
    const node = this.content[idx];
-    const nodeScore = this.scoreFunction(node);
    while (idx > 0) {
      const parentN = ((idx + 1) >> 1) - 1;
      const parent = this.content[parentN];
-      if (nodeScore < this.scoreFunction(parent)) {
+      if (this.scoreFunction(node) < this.scoreFunction(parent)) {
+        this.content[parentN] = node;
        this.content[idx] = parent;
        idx = parentN; // TODO: Optimize
      } else {
        break;
      }
    }
-    this.content[idx] = node;
  }

  bubbleUp(idx: number) {
@@ -25,39 +24,35 @@ export class BinaryHeap<T> {
    const score = this.scoreFunction(node);

    while (true) {
-      const child1N = ((idx + 1) << 1) - 1;
-      const child2N = child1N + 1;
-      let smallestIdx = idx;
-      let smallestScore = score;
+      const child2N = (idx + 1) << 1;
+      const child1N = child2N - 1;
+      let swap = null;
+      let child1Score = 0;

-      // Check left child
      if (child1N < length) {
-        const child1Score = this.scoreFunction(this.content[child1N]);
-        if (child1Score < smallestScore) {
-          smallestIdx = child1N;
-          smallestScore = child1Score;
+        const child1 = this.content[child1N];
+        child1Score = this.scoreFunction(child1);
+        if (child1Score < score) {
+          swap = child1N;
        }
      }

-      // Check right child
      if (child2N < length) {
-        const child2Score = this.scoreFunction(this.content[child2N]);
-        if (child2Score < smallestScore) {
-          smallestIdx = child2N;
+        const child2 = this.content[child2N];
+        const child2Score = this.scoreFunction(child2);
+        if (child2Score < (swap === null ? score : child1Score)) {
+          swap = child2N;
        }
      }

-      if (smallestIdx === idx) {
+      if (swap !== null) {
+        this.content[idx] = this.content[swap];
+        this.content[swap] = node;
+        idx = swap; // TODO: Optimize
+      } else {
        break;
      }
-
-      // Move the smaller child up, continue finding position for node
-      this.content[idx] = this.content[smallestIdx];
-      idx = smallestIdx;
    }
-
-    // Place node in its final position
-    this.content[idx] = node;
  }

  push(node: T) {
@@ -1,17 +0,0 @@
-/**
- * x and y position of top left corner, x and y position of bottom right corner
- */
-export type Bounds = readonly [
-  minX: number,
-  minY: number,
-  maxX: number,
-  maxY: number,
-];
-
-export const isBounds = (box: unknown): box is Bounds =>
-  Array.isArray(box) &&
-  box.length === 4 &&
-  typeof box[0] === "number" &&
-  typeof box[1] === "number" &&
-  typeof box[2] === "number" &&
-  typeof box[3] === "number";
@@ -1,286 +0,0 @@
-import {
-  applyDarkModeFilter,
-  COLOR_PALETTE,
-  rgbToHex,
-} from "@excalidraw/common";
-
-describe("COLOR_PALETTE", () => {
-  it("color palette doesn't regress", () => {
-    expect(COLOR_PALETTE).toMatchSnapshot();
-  });
-});
-
-describe("applyDarkModeFilter", () => {
-  describe("basic transformations", () => {
-    it("transforms black to near-white", () => {
-      const result = applyDarkModeFilter("#000000");
-      // Black inverted 93% + hue rotate should be near white/light gray
-      expect(result).toBe("#ededed");
-    });
-
-    it("transforms white to near-black", () => {
-      const result = applyDarkModeFilter("#ffffff");
-      // White inverted 93% should be near black/dark gray
-      expect(result).toBe("#121212");
-    });
-
-    it("transforms pure red", () => {
-      const result = applyDarkModeFilter("#ff0000");
-      // Invert 93% + hue rotate 180deg produces a cyan-ish tint
-      expect(result).toBe("#ff9090");
-    });
-
-    it("transforms pure green", () => {
-      const result = applyDarkModeFilter("#00ff00");
-      // Invert 93% + hue rotate 180deg
-      expect(result).toBe("#008f00");
-    });
-
-    it("transforms pure blue", () => {
-      const result = applyDarkModeFilter("#0000ff");
-      // Invert 93% + hue rotate 180deg produces a light purple
-      expect(result).toBe("#cdcdff");
-    });
-  });
-
-  describe("color formats", () => {
-    it("handles hex with hash", () => {
-      const result = applyDarkModeFilter("#ff0000");
-      // Fully opaque colors return 6-char hex
-      expect(result).toMatch(/^#[0-9a-f]{6}$/);
-    });
-
-    it("handles named colors", () => {
-      const result = applyDarkModeFilter("red");
-      // "red" = #ff0000, fully opaque
-      expect(result).toBe("#ff9090");
-    });
-
-    it("handles rgb format", () => {
-      const result = applyDarkModeFilter("rgb(255, 0, 0)");
-      expect(result).toBe("#ff9090");
-    });
-
-    it("handles rgba format and preserves alpha", () => {
-      const result = applyDarkModeFilter("rgba(255, 0, 0, 0.5)");
-      expect(result).toMatch(/^#[0-9a-f]{8}$/);
-      // Alpha 0.5 = 128 in hex = 80
-      expect(result).toBe("#ff909080");
-    });
-
-    it("handles transparent", () => {
-      const result = applyDarkModeFilter("transparent");
-      // transparent = rgba(0,0,0,0), inverted should still have 0 alpha
-      expect(result).toBe("#ededed00");
-    });
-
-    it("handles shorthand hex", () => {
-      const result = applyDarkModeFilter("#f00");
-      expect(result).toBe("#ff9090");
-    });
-  });
-
-  describe("alpha preservation", () => {
-    it("omits alpha for full opacity", () => {
-      const result = applyDarkModeFilter("#ff0000ff");
-      // Full opacity returns 6-char hex (no alpha suffix)
-      expect(result).toBe("#ff9090");
-    });
-
-    it("preserves 50% opacity", () => {
-      const result = applyDarkModeFilter("#ff000080");
-      expect(result.slice(-2)).toBe("80");
-    });
-
-    it("preserves 0% opacity", () => {
-      const result = applyDarkModeFilter("#ff000000");
-      expect(result.slice(-2)).toBe("00");
-    });
-  });
-
-  describe("COLOR_PALETTE regression tests", () => {
-    it("transforms black from palette", () => {
-      // COLOR_PALETTE.black is #1e1e1e (not pure black)
-      const result = applyDarkModeFilter(COLOR_PALETTE.black);
-      expect(result).toBe("#d3d3d3");
-    });
-
-    it("transforms white from palette", () => {
-      const result = applyDarkModeFilter(COLOR_PALETTE.white);
-      expect(result).toBe("#121212");
-    });
-
-    it("transforms transparent from palette", () => {
-      const result = applyDarkModeFilter(COLOR_PALETTE.transparent);
-      expect(result).toBe("#ededed00");
-    });
-
-    // Test each color family from the palette (all opaque, so 6-char hex)
-    describe("red shades", () => {
-      const redShades = COLOR_PALETTE.red;
-      it.each(redShades.map((color, i) => [color, i]))(
-        "transforms red shade %s (index %d)",
-        (color) => {
-          const result = applyDarkModeFilter(color as string);
-          expect(result).toMatch(/^#[0-9a-f]{6}$/);
-        },
-      );
-    });
-
-    describe("blue shades", () => {
-      const blueShades = COLOR_PALETTE.blue;
-      it.each(blueShades.map((color, i) => [color, i]))(
-        "transforms blue shade %s (index %d)",
-        (color) => {
-          const result = applyDarkModeFilter(color as string);
-          expect(result).toMatch(/^#[0-9a-f]{6}$/);
-        },
-      );
-    });
-
-    describe("green shades", () => {
-      const greenShades = COLOR_PALETTE.green;
-      it.each(greenShades.map((color, i) => [color, i]))(
-        "transforms green shade %s (index %d)",
-        (color) => {
-          const result = applyDarkModeFilter(color as string);
-          expect(result).toMatch(/^#[0-9a-f]{6}$/);
-        },
-      );
-    });
-
-    describe("gray shades", () => {
-      const grayShades = COLOR_PALETTE.gray;
-      it.each(grayShades.map((color, i) => [color, i]))(
-        "transforms gray shade %s (index %d)",
-        (color) => {
-          const result = applyDarkModeFilter(color as string);
-          expect(result).toMatch(/^#[0-9a-f]{6}$/);
-        },
-      );
-    });
-
-    describe("bronze shades", () => {
-      const bronzeShades = COLOR_PALETTE.bronze;
-      it.each(bronzeShades.map((color, i) => [color, i]))(
-        "transforms bronze shade %s (index %d)",
-        (color) => {
-          const result = applyDarkModeFilter(color as string);
-          expect(result).toMatch(/^#[0-9a-f]{6}$/);
-        },
-      );
-    });
-
-    // Snapshot test for full palette to catch any regressions
-    it("matches snapshot for all palette colors", () => {
-      const transformedPalette: Record<string, string | string[]> = {};
-
-      transformedPalette.black = applyDarkModeFilter(COLOR_PALETTE.black);
-      transformedPalette.white = applyDarkModeFilter(COLOR_PALETTE.white);
-      transformedPalette.transparent = applyDarkModeFilter(
-        COLOR_PALETTE.transparent,
-      );
-
-      // Transform color arrays
-      for (const colorName of [
-        "gray",
-        "red",
-        "pink",
-        "grape",
-        "violet",
-        "blue",
-        "cyan",
-        "teal",
-        "green",
-        "yellow",
-        "orange",
-        "bronze",
-      ] as const) {
-        const shades = COLOR_PALETTE[colorName];
-        transformedPalette[colorName] = shades.map((shade) =>
-          applyDarkModeFilter(shade),
-        );
-      }
-
-      expect(transformedPalette).toMatchSnapshot();
-    });
-  });
-
-  describe("caching", () => {
-    it("returns same result for same input (cached)", () => {
-      const result1 = applyDarkModeFilter("#ff0000");
-      const result2 = applyDarkModeFilter("#ff0000");
-      expect(result1).toBe(result2);
-    });
-  });
-});
-
-describe("rgbToHex", () => {
-  describe("basic RGB conversion", () => {
-    it("converts black (0,0,0)", () => {
-      expect(rgbToHex(0, 0, 0)).toBe("#000000");
-    });
-
-    it("converts white (255,255,255)", () => {
-      expect(rgbToHex(255, 255, 255)).toBe("#ffffff");
-    });
-
-    it("converts red (255,0,0)", () => {
-      expect(rgbToHex(255, 0, 0)).toBe("#ff0000");
-    });
-
-    it("converts green (0,255,0)", () => {
-      expect(rgbToHex(0, 255, 0)).toBe("#00ff00");
-    });
-
-    it("converts blue (0,0,255)", () => {
-      expect(rgbToHex(0, 0, 255)).toBe("#0000ff");
-    });
-
-    it("converts arbitrary color", () => {
-      expect(rgbToHex(30, 30, 30)).toBe("#1e1e1e");
-    });
-  });
-
-  describe("leading zeros preservation", () => {
-    it("preserves leading zeros for low values", () => {
-      expect(rgbToHex(0, 0, 1)).toBe("#000001");
-      expect(rgbToHex(0, 1, 0)).toBe("#000100");
-      expect(rgbToHex(1, 0, 0)).toBe("#010000");
-    });
-
-    it("preserves zeros for single-digit hex values", () => {
-      expect(rgbToHex(15, 15, 15)).toBe("#0f0f0f");
-    });
-  });
-
-  describe("alpha handling", () => {
-    it("omits alpha when undefined", () => {
-      expect(rgbToHex(255, 0, 0)).toBe("#ff0000");
-      expect(rgbToHex(255, 0, 0, undefined)).toBe("#ff0000");
-    });
-
-    it("omits alpha when fully opaque (1)", () => {
-      expect(rgbToHex(255, 0, 0, 1)).toBe("#ff0000");
-    });
-
-    it("includes alpha for semi-transparent (0.5)", () => {
-      // 0.5 * 255 = 127.5 -> rounds to 128 = 0x80
-      expect(rgbToHex(255, 0, 0, 0.5)).toBe("#ff000080");
-    });
-
-    it("includes alpha for fully transparent (0)", () => {
-      expect(rgbToHex(255, 0, 0, 0)).toBe("#ff000000");
-    });
-
-    it("includes alpha for near-opaque (0.99)", () => {
-      // 0.99 * 255 = 252.45 -> rounds to 252 = 0xfc
-      expect(rgbToHex(255, 0, 0, 0.99)).toBe("#ff0000fc");
-    });
-
-    it("pads alpha with leading zero when needed", () => {
-      // 0.05 * 255 = 12.75 -> rounds to 13 = 0x0d
-      expect(rgbToHex(255, 0, 0, 0.05)).toBe("#ff00000d");
-    });
-  });
-});
@@ -1,117 +1,8 @@
-import tinycolor from "tinycolor2";
+import oc from "open-color";

-import { clamp } from "@excalidraw/math";
-import { degreesToRadians } from "@excalidraw/math";
+import type { Merge } from "./utility-types";

-import type { Degrees } from "@excalidraw/math";
-
-// ---------------------------------------------------------------------------
-// Dark mode color transformation
-// ---------------------------------------------------------------------------
-
-// Browser-only cache to avoid memory leaks on server
-const DARK_MODE_COLORS_CACHE: Map<string, string> | null =
-  typeof window !== "undefined" ? new Map() : null;
-
-function cssHueRotate(
-  red: number,
-  green: number,
-  blue: number,
-  degrees: Degrees,
-): { r: number; g: number; b: number } {
-  // normalize
-  const r = red / 255;
-  const g = green / 255;
-  const b = blue / 255;
-
-  // Convert degrees to radians
-  const a = degreesToRadians(degrees);
-
-  const c = Math.cos(a);
-  const s = Math.sin(a);
-
-  // rotation matrix
-  const matrix = [
-    0.213 + c * 0.787 - s * 0.213,
-    0.715 - c * 0.715 - s * 0.715,
-    0.072 - c * 0.072 + s * 0.928,
-    0.213 - c * 0.213 + s * 0.143,
-    0.715 + c * 0.285 + s * 0.14,
-    0.072 - c * 0.072 - s * 0.283,
-    0.213 - c * 0.213 - s * 0.787,
-    0.715 - c * 0.715 + s * 0.715,
-    0.072 + c * 0.928 + s * 0.072,
-  ];
-
-  // transform
-  const newR = r * matrix[0] + g * matrix[1] + b * matrix[2];
-  const newG = r * matrix[3] + g * matrix[4] + b * matrix[5];
-  const newB = r * matrix[6] + g * matrix[7] + b * matrix[8];
-
-  // clamp the values to [0, 1] range and convert back to [0, 255]
-  return {
-    r: Math.round(Math.max(0, Math.min(1, newR)) * 255),
-    g: Math.round(Math.max(0, Math.min(1, newG)) * 255),
-    b: Math.round(Math.max(0, Math.min(1, newB)) * 255),
-  };
-}
-
-const cssInvert = (
-  r: number,
-  g: number,
-  b: number,
-  percent: number,
-): { r: number; g: number; b: number } => {
-  const p = clamp(percent, 0, 100) / 100;
-
-  // Function to invert a single color component
-  const invertComponent = (color: number): number => {
-    // Apply the invert formula
-    const inverted = color * (1 - p) + (255 - color) * p;
-    // Round to the nearest integer and clamp to [0, 255]
-    return Math.round(clamp(inverted, 0, 255));
-  };
-
-  // Calculate the inverted RGB components
-  const invertedR = invertComponent(r);
-  const invertedG = invertComponent(g);
-  const invertedB = invertComponent(b);
-
-  return { r: invertedR, g: invertedG, b: invertedB };
-};
-
-export const applyDarkModeFilter = (color: string): string => {
-  const cached = DARK_MODE_COLORS_CACHE?.get(color);
-  if (cached) {
-    return cached;
-  }
-
-  const tc = tinycolor(color);
-  const alpha = tc.getAlpha();
-
-  // order of operations matters
-  // (corresponds to "filter: invert(invertPercent) hue-rotate(hueDegrees)" in css)
-  const rgb = tc.toRgb();
-  const inverted = cssInvert(rgb.r, rgb.g, rgb.b, 93);
-  const rotated = cssHueRotate(
-    inverted.r,
-    inverted.g,
-    inverted.b,
-    180 as Degrees,
-  );
-
-  const result = rgbToHex(rotated.r, rotated.g, rotated.b, alpha);
-
-  if (DARK_MODE_COLORS_CACHE) {
-    DARK_MODE_COLORS_CACHE.set(color, result);
-  }
-
-  return result;
-};
-
-// ---------------------------------------------------------------------------
-// Color palette
-// ---------------------------------------------------------------------------
+export const COLOR_OUTLINE_CONTRAST_THRESHOLD = 240;

 // FIXME can't put to utils.ts rn because of circular dependency
 const pick = <R extends Record<string, any>, K extends readonly (keyof R)[]>(
@@ -126,7 +17,15 @@ const pick = <R extends Record<string, any>, K extends readonly (keyof R)[]>(
  }, {} as Pick<R, K[number]>) as Pick<R, K[number]>;
 };

+export type ColorPickerColor =
+  | Exclude<keyof oc, "indigo" | "lime">
+  | "transparent"
+  | "bronze";
 export type ColorTuple = readonly [string, string, string, string, string];
+export type ColorPalette = Merge<
+  Record<ColorPickerColor, ColorTuple>,
+  { black: "#1e1e1e"; white: "#ffffff"; transparent: "transparent" }
+>;

 // used general type instead of specific type (ColorPalette) to support custom colors
 export type ColorPaletteCustom = { [key: string]: ColorTuple | string };
@@ -139,30 +38,38 @@ export const DEFAULT_CHART_COLOR_INDEX = 4;

 export const DEFAULT_ELEMENT_STROKE_COLOR_INDEX = 4;
 export const DEFAULT_ELEMENT_BACKGROUND_COLOR_INDEX = 1;
+export const ELEMENTS_PALETTE_SHADE_INDEXES = [0, 2, 4, 6, 8] as const;
+export const CANVAS_PALETTE_SHADE_INDEXES = [0, 1, 2, 3, 4] as const;
+
+export const getSpecificColorShades = (
+  color: Exclude<
+    ColorPickerColor,
+    "transparent" | "white" | "black" | "bronze"
+  >,
+  indexArr: Readonly<ColorShadesIndexes>,
+) => {
+  return indexArr.map((index) => oc[color][index]) as any as ColorTuple;
+};

 export const COLOR_PALETTE = {
  transparent: "transparent",
  black: "#1e1e1e",
  white: "#ffffff",
-  // open-color from https://github.com/yeun/open-color/blob/master/open-color.js
-  // corresponds to indexes [0,2,4,6,8] (weights: 50, 200, 400, 600, 800)
-  gray: ["#f8f9fa", "#e9ecef", "#ced4da", "#868e96", "#343a40"],
-  red: ["#fff5f5", "#ffc9c9", "#ff8787", "#fa5252", "#e03131"],
-  pink: ["#fff0f6", "#fcc2d7", "#f783ac", "#e64980", "#c2255c"],
-  grape: ["#f8f0fc", "#eebefa", "#da77f2", "#be4bdb", "#9c36b5"],
-  violet: ["#f3f0ff", "#d0bfff", "#9775fa", "#7950f2", "#6741d9"],
-  blue: ["#e7f5ff", "#a5d8ff", "#4dabf7", "#228be6", "#1971c2"],
-  cyan: ["#e3fafc", "#99e9f2", "#3bc9db", "#15aabf", "#0c8599"],
-  teal: ["#e6fcf5", "#96f2d7", "#38d9a9", "#12b886", "#099268"],
-  green: ["#ebfbee", "#b2f2bb", "#69db7c", "#40c057", "#2f9e44"],
-  yellow: ["#fff9db", "#ffec99", "#ffd43b", "#fab005", "#f08c00"],
-  orange: ["#fff4e6", "#ffd8a8", "#ffa94d", "#fd7e14", "#e8590c"],
-  // radix bronze shades [3,5,7,9,11]
+  // open-colors
+  gray: getSpecificColorShades("gray", ELEMENTS_PALETTE_SHADE_INDEXES),
+  red: getSpecificColorShades("red", ELEMENTS_PALETTE_SHADE_INDEXES),
+  pink: getSpecificColorShades("pink", ELEMENTS_PALETTE_SHADE_INDEXES),
+  grape: getSpecificColorShades("grape", ELEMENTS_PALETTE_SHADE_INDEXES),
+  violet: getSpecificColorShades("violet", ELEMENTS_PALETTE_SHADE_INDEXES),
+  blue: getSpecificColorShades("blue", ELEMENTS_PALETTE_SHADE_INDEXES),
+  cyan: getSpecificColorShades("cyan", ELEMENTS_PALETTE_SHADE_INDEXES),
+  teal: getSpecificColorShades("teal", ELEMENTS_PALETTE_SHADE_INDEXES),
+  green: getSpecificColorShades("green", ELEMENTS_PALETTE_SHADE_INDEXES),
+  yellow: getSpecificColorShades("yellow", ELEMENTS_PALETTE_SHADE_INDEXES),
+  orange: getSpecificColorShades("orange", ELEMENTS_PALETTE_SHADE_INDEXES),
+  // radix bronze shades 3,5,7,9,11
  bronze: ["#f8f1ee", "#eaddd7", "#d2bab0", "#a18072", "#846358"],
-} as const;
-
-export type ColorPalette = typeof COLOR_PALETTE;
-export type ColorPickerColor = keyof typeof COLOR_PALETTE;
+} as ColorPalette;

 const COMMON_ELEMENT_SHADES = pick(COLOR_PALETTE, [
  "cyan",
@@ -177,6 +84,7 @@ const COMMON_ELEMENT_SHADES = pick(COLOR_PALETTE, [
  "red",
 ]);

+// -----------------------------------------------------------------------------
 // quick picks defaults
 // -----------------------------------------------------------------------------

@@ -211,6 +119,7 @@ export const DEFAULT_CANVAS_BACKGROUND_PICKS = [
  "#fdf8f6",
 ] as ColorTuple;

+// -----------------------------------------------------------------------------
 // palette defaults
 // -----------------------------------------------------------------------------

@@ -236,120 +145,29 @@ export const DEFAULT_ELEMENT_BACKGROUND_COLOR_PALETTE = {
  ...COMMON_ELEMENT_SHADES,
 } as const;

-// color palette helpers
+// -----------------------------------------------------------------------------
+// helpers
 // -----------------------------------------------------------------------------

 // !!!MUST BE WITHOUT GRAY, TRANSPARENT AND BLACK!!!
-export const getAllColorsSpecificShade = (index: 0 | 1 | 2 | 3 | 4) => [
-  // 2nd row
-  COLOR_PALETTE.cyan[index],
-  COLOR_PALETTE.blue[index],
-  COLOR_PALETTE.violet[index],
-  COLOR_PALETTE.grape[index],
-  COLOR_PALETTE.pink[index],
+export const getAllColorsSpecificShade = (index: 0 | 1 | 2 | 3 | 4) =>
+  [
+    // 2nd row
+    COLOR_PALETTE.cyan[index],
+    COLOR_PALETTE.blue[index],
+    COLOR_PALETTE.violet[index],
+    COLOR_PALETTE.grape[index],
+    COLOR_PALETTE.pink[index],

-  // 3rd row
-  COLOR_PALETTE.green[index],
-  COLOR_PALETTE.teal[index],
-  COLOR_PALETTE.yellow[index],
-  COLOR_PALETTE.orange[index],
-  COLOR_PALETTE.red[index],
-];
+    // 3rd row
+    COLOR_PALETTE.green[index],
+    COLOR_PALETTE.teal[index],
+    COLOR_PALETTE.yellow[index],
+    COLOR_PALETTE.orange[index],
+    COLOR_PALETTE.red[index],
+  ] as const;
+
+export const rgbToHex = (r: number, g: number, b: number) =>
+  `#${((1 << 24) + (r << 16) + (g << 8) + b).toString(16).slice(1)}`;

 // -----------------------------------------------------------------------------
-// other helpers
-// -----------------------------------------------------------------------------
-
-export const rgbToHex = (r: number, g: number, b: number, a?: number) => {
-  // (1 << 24) adds 0x1000000 to ensure the hex string is always 7 chars,
-  // then slice(1) removes the leading "1" to get exactly 6 hex digits
-  // e.g. rgb(0,0,0) -> 0x1000000 -> "1000000" -> "000000"
-  const hex6 = `#${((1 << 24) + (r << 16) + (g << 8) + b)
-    .toString(16)
-    .slice(1)}`;
-  if (a !== undefined && a < 1) {
-    // convert alpha from 0-1 float to 0-255 int, then to 2-digit hex
-    // e.g. 0.5 -> 128 -> "80"
-    const alphaHex = Math.round(a * 255)
-      .toString(16)
-      .padStart(2, "0");
-    return `${hex6}${alphaHex}`;
-  }
-  return hex6;
-};
-
-/**
- * @returns #RRGGBB or #RRGGBBAA based on color containing non-opaque alpha,
- *  null if not valid color
- */
-export const colorToHex = (color: string): string | null => {
-  const tc = tinycolor(color);
-  if (!tc.isValid()) {
-    return null;
-  }
-  const { r, g, b, a } = tc.toRgb();
-  return rgbToHex(r, g, b, a);
-};
-
-export const isTransparent = (color: string) => {
-  return tinycolor(color).getAlpha() === 0;
-};
-
-// -----------------------------------------------------------------------------
-// color contract helpers
-// -----------------------------------------------------------------------------
-
-export const COLOR_OUTLINE_CONTRAST_THRESHOLD = 240;
-
-const calculateContrast = (r: number, g: number, b: number): number => {
-  const yiq = (r * 299 + g * 587 + b * 114) / 1000;
-  return yiq;
-};
-
-// YIQ algo, inspiration from https://stackoverflow.com/a/11868398
-export const isColorDark = (color: string, threshold = 160): boolean => {
-  // no color ("") -> assume it default to black
-  if (!color) {
-    return true;
-  }
-
-  if (isTransparent(color)) {
-    return false;
-  }
-
-  const tc = tinycolor(color);
-  if (!tc.isValid()) {
-    // invalid color -> assume it defaults to black
-    return true;
-  }
-
-  const { r, g, b } = tc.toRgb();
-  return calculateContrast(r, g, b) < threshold;
-};
-
-// -----------------------------------------------------------------------------
-// normalization
-// -----------------------------------------------------------------------------
-
-/**
- * tries to keep the input color as-is if it's valid, making minimal adjustments
- * (trimming whitespace or adding `#` to hex colors)
- */
-export const normalizeInputColor = (color: string): string | null => {
-  color = color.trim();
-  if (isTransparent(color)) {
-    return color;
-  }
-
-  const tc = tinycolor(color);
-  if (tc.isValid()) {
-    // testing for `#` first fixes a bug on Electron (more specfically, an
-    // Obsidian popout window), where a hex color without `#` is considered valid
-    if (["hex", "hex8"].includes(tc.getFormat()) && !color.startsWith("#")) {
-      return `#${color}`;
-    }
-    return color;
-  }
-
-  return null;
-};
@@ -6,6 +6,24 @@ import type { AppProps, AppState } from "@excalidraw/excalidraw/types";

 import { COLOR_PALETTE } from "./colors";

+export const isDarwin = /Mac|iPod|iPhone|iPad/.test(navigator.platform);
+export const isWindows = /^Win/.test(navigator.platform);
+export const isAndroid = /\b(android)\b/i.test(navigator.userAgent);
+export const isFirefox =
+  "netscape" in window &&
+  navigator.userAgent.indexOf("rv:") > 1 &&
+  navigator.userAgent.indexOf("Gecko") > 1;
+export const isChrome = navigator.userAgent.indexOf("Chrome") !== -1;
+export const isSafari =
+  !isChrome && navigator.userAgent.indexOf("Safari") !== -1;
+export const isIOS =
+  /iPad|iPhone/.test(navigator.platform) ||
+  // iPadOS 13+
+  (navigator.userAgent.includes("Mac") && "ontouchend" in document);
+// keeping function so it can be mocked in test
+export const isBrave = () =>
+  (navigator as any).brave?.isBrave?.name === "isBrave";
+
 export const supportsResizeObserver =
  typeof window !== "undefined" && "ResizeObserver" in window;

@@ -17,7 +35,6 @@ export const APP_NAME = "Excalidraw";
 // (happens a lot with fast clicks with the text tool)
 export const TEXT_AUTOWRAP_THRESHOLD = 36; // px
 export const DRAGGING_THRESHOLD = 10; // px
-export const MINIMUM_ARROW_SIZE = 20; // px
 export const LINE_CONFIRM_THRESHOLD = 8; // px
 export const ELEMENT_SHIFT_TRANSLATE_AMOUNT = 5;
 export const ELEMENT_TRANSLATE_AMOUNT = 1;
@@ -99,23 +116,11 @@ export const ENV = {
 };

 export const CLASSES = {
-  SIDEBAR: "sidebar",
  SHAPE_ACTIONS_MENU: "App-menu__left",
  ZOOM_ACTIONS: "zoom-actions",
  SEARCH_MENU_INPUT_WRAPPER: "layer-ui__search-inputWrapper",
-  CONVERT_ELEMENT_TYPE_POPUP: "ConvertElementTypePopup",
-  SHAPE_ACTIONS_THEME_SCOPE: "shape-actions-theme-scope",
-  FRAME_NAME: "frame-name",
-  DROPDOWN_MENU_EVENT_WRAPPER: "dropdown-menu-event-wrapper",
 };

-export const FONT_SIZES = {
-  sm: 16,
-  md: 20,
-  lg: 28,
-  xl: 36,
-} as const;
-
 export const CJK_HAND_DRAWN_FALLBACK_FONT = "Xiaolai";
 export const WINDOWS_EMOJI_FALLBACK_FONT = "Segoe UI Emoji";

@@ -137,52 +142,21 @@ export const FONT_FAMILY = {
  "Lilita One": 7,
  "Comic Shanns": 8,
  "Liberation Sans": 9,
-  Assistant: 10,
-};
-
-// Segoe UI Emoji fails to properly fallback for some glyphs: ∞, ∫, ≠
-// so we need to have generic font fallback before it
-export const SANS_SERIF_GENERIC_FONT = "sans-serif";
-export const MONOSPACE_GENERIC_FONT = "monospace";
-
-export const FONT_FAMILY_GENERIC_FALLBACKS = {
-  [SANS_SERIF_GENERIC_FONT]: 998,
-  [MONOSPACE_GENERIC_FONT]: 999,
 };

 export const FONT_FAMILY_FALLBACKS = {
  [CJK_HAND_DRAWN_FALLBACK_FONT]: 100,
-  ...FONT_FAMILY_GENERIC_FALLBACKS,
  [WINDOWS_EMOJI_FALLBACK_FONT]: 1000,
 };

-export function getGenericFontFamilyFallback(
-  fontFamily: number,
-): keyof typeof FONT_FAMILY_GENERIC_FALLBACKS {
-  switch (fontFamily) {
-    case FONT_FAMILY.Cascadia:
-    case FONT_FAMILY["Comic Shanns"]:
-      return MONOSPACE_GENERIC_FONT;
-
-    default:
-      return SANS_SERIF_GENERIC_FONT;
-  }
-}
-
 export const getFontFamilyFallbacks = (
  fontFamily: number,
 ): Array<keyof typeof FONT_FAMILY_FALLBACKS> => {
-  const genericFallbackFont = getGenericFontFamilyFallback(fontFamily);
-
  switch (fontFamily) {
    case FONT_FAMILY.Excalifont:
-      return [
-        CJK_HAND_DRAWN_FALLBACK_FONT,
-        genericFallbackFont,
-        WINDOWS_EMOJI_FALLBACK_FONT,
-      ];
+      return [CJK_HAND_DRAWN_FALLBACK_FONT, WINDOWS_EMOJI_FALLBACK_FONT];
    default:
-      return [genericFallbackFont, WINDOWS_EMOJI_FALLBACK_FONT];
+      return [WINDOWS_EMOJI_FALLBACK_FONT];
  }
 };

@@ -191,8 +165,6 @@ export const THEME = {
  DARK: "dark",
 } as const;

-export const DARK_THEME_FILTER = "invert(93%) hue-rotate(180deg)";
-
 export const FRAME_STYLE = {
  strokeColor: "#bbb" as ExcalidrawElement["strokeColor"],
  strokeWidth: 2 as ExcalidrawElement["strokeWidth"],
@@ -246,21 +218,13 @@ export const IMAGE_MIME_TYPES = {
  jfif: "image/jfif",
 } as const;

-export const STRING_MIME_TYPES = {
+export const MIME_TYPES = {
  text: "text/plain",
  html: "text/html",
  json: "application/json",
  // excalidraw data
  excalidraw: "application/vnd.excalidraw+json",
-  excalidrawClipboard: "application/vnd.excalidraw.clipboard+json",
-  // LEGACY: fully-qualified library JSON data
  excalidrawlib: "application/vnd.excalidrawlib+json",
-  // list of excalidraw library item ids
-  excalidrawlibIds: "application/vnd.excalidrawlib.ids+json",
-} as const;
-
-export const MIME_TYPES = {
-  ...STRING_MIME_TYPES,
  // image-encoded excalidraw data
  "excalidraw.svg": "image/svg+xml",
  "excalidraw.png": "image/png",
@@ -289,7 +253,7 @@ export const EXPORT_DATA_TYPES = {
  excalidrawClipboardWithAPI: "excalidraw-api/clipboard",
 } as const;

-export const getExportSource = () =>
+export const EXPORT_SOURCE =
  window.EXCALIDRAW_EXPORT_SOURCE || window.location.origin;

 // time in milliseconds
@@ -309,6 +273,9 @@ export const IDLE_THRESHOLD = 60_000;
 // Report a user active each ACTIVE_THRESHOLD milliseconds
 export const ACTIVE_THRESHOLD = 3_000;

+// duplicates --theme-filter, should be removed soon
+export const THEME_FILTER = "invert(93%) hue-rotate(180deg)";
+
 export const URL_QUERY_KEYS = {
  addLibrary: "addLibrary",
 } as const;
@@ -332,6 +299,16 @@ export const DEFAULT_UI_OPTIONS: AppProps["UIOptions"] = {
  },
 };

+// breakpoints
+// -----------------------------------------------------------------------------
+// md screen
+export const MQ_MAX_WIDTH_PORTRAIT = 730;
+export const MQ_MAX_WIDTH_LANDSCAPE = 1000;
+export const MQ_MAX_HEIGHT_LANDSCAPE = 500;
+// sidebar
+export const MQ_RIGHT_SIDEBAR_MIN_WIDTH = 1229;
+// -----------------------------------------------------------------------------
+
 export const MAX_DECIMALS_FOR_SVG_EXPORT = 2;

 export const EXPORT_SCALES = [1, 2, 3];
@@ -497,19 +474,3 @@ export enum UserIdleState {
  AWAY = "away",
  IDLE = "idle",
 }
-
-/**
- * distance at which we merge points instead of adding a new merge-point
- * when converting a line to a polygon (merge currently means overlaping
- * the start and end points)
- */
-export const LINE_POLYGON_POINT_MERGE_DISTANCE = 20;
-
-export const DOUBLE_TAP_POSITION_THRESHOLD = 35;
-
-export const BIND_MODE_TIMEOUT = 700; // ms
-
-// glass background for mobile action buttons
-export const MOBILE_ACTION_BUTTON_BG = {
-  background: "var(--mobile-action-button-bg)",
-} as const;
@@ -1,222 +0,0 @@
-export type StylesPanelMode = "compact" | "full" | "mobile";
-
-export type EditorInterface = Readonly<{
-  formFactor: "phone" | "tablet" | "desktop";
-  desktopUIMode: "compact" | "full";
-  userAgent: Readonly<{
-    isMobileDevice: boolean;
-    platform: "ios" | "android" | "other" | "unknown";
-  }>;
-  isTouchScreen: boolean;
-  canFitSidebar: boolean;
-  isLandscape: boolean;
-}>;
-
-// storage key
-const DESKTOP_UI_MODE_STORAGE_KEY = "excalidraw.desktopUIMode";
-
-// breakpoints
-export const MQ_MAX_MOBILE = 599;
-
-export const MQ_MAX_WIDTH_LANDSCAPE = 1000;
-export const MQ_MAX_HEIGHT_LANDSCAPE = 500;
-
-// tablets
-export const MQ_MIN_TABLET = MQ_MAX_MOBILE + 1; // lower bound (excludes phones)
-export const MQ_MAX_TABLET = 1180; // ipad air
-
-// desktop/laptop (NOTE: not used for form factor detection)
-export const MQ_MIN_WIDTH_DESKTOP = 1440;
-
-// sidebar
-export const MQ_RIGHT_SIDEBAR_MIN_WIDTH = 1229;
-
-// -----------------------------------------------------------------------------
-
-// user agent detections
-export const isDarwin = /Mac|iPod|iPhone|iPad/.test(navigator.platform);
-export const isWindows = /^Win/.test(navigator.platform);
-export const isAndroid = /\b(android)\b/i.test(navigator.userAgent);
-export const isFirefox =
-  typeof window !== "undefined" &&
-  "netscape" in window &&
-  navigator.userAgent.indexOf("rv:") > 1 &&
-  navigator.userAgent.indexOf("Gecko") > 1;
-export const isChrome = navigator.userAgent.indexOf("Chrome") !== -1;
-export const isSafari =
-  !isChrome && navigator.userAgent.indexOf("Safari") !== -1;
-export const isIOS =
-  /iPad|iPhone/i.test(navigator.platform) ||
-  // iPadOS 13+
-  (navigator.userAgent.includes("Mac") && "ontouchend" in document);
-// keeping function so it can be mocked in test
-export const isBrave = () =>
-  (navigator as any).brave?.isBrave?.name === "isBrave";
-
-// export const isMobile =
-//   isIOS ||
-//   /android|webos|ipod|blackberry|iemobile|opera mini/i.test(
-//     navigator.userAgent,
-//   ) ||
-//   /android|ios|ipod|blackberry|windows phone/i.test(navigator.platform);
-
-// utilities
-export const isMobileBreakpoint = (width: number, height: number) => {
-  return (
-    width <= MQ_MAX_MOBILE ||
-    (height < MQ_MAX_HEIGHT_LANDSCAPE && width < MQ_MAX_WIDTH_LANDSCAPE)
-  );
-};
-
-export const isTabletBreakpoint = (
-  editorWidth: number,
-  editorHeight: number,
-) => {
-  const minSide = Math.min(editorWidth, editorHeight);
-  const maxSide = Math.max(editorWidth, editorHeight);
-
-  return minSide >= MQ_MIN_TABLET && maxSide <= MQ_MAX_TABLET;
-};
-
-const isMobileOrTablet = (): boolean => {
-  const ua = navigator.userAgent || "";
-  const platform = navigator.platform || "";
-  const uaData = (navigator as any).userAgentData as
-    | { mobile?: boolean; platform?: string }
-    | undefined;
-
-  // --- 1) chromium: prefer ua client hints -------------------------------
-  if (uaData) {
-    const plat = (uaData.platform || "").toLowerCase();
-    const isDesktopOS =
-      plat === "windows" ||
-      plat === "macos" ||
-      plat === "linux" ||
-      plat === "chrome os";
-    if (uaData.mobile === true) {
-      return true;
-    }
-    if (uaData.mobile === false && plat === "android") {
-      const looksTouchTablet =
-        matchMedia?.("(hover: none)").matches &&
-        matchMedia?.("(pointer: coarse)").matches;
-      return looksTouchTablet;
-    }
-    if (isDesktopOS) {
-      return false;
-    }
-  }
-
-  // --- 2) ios (includes ipad) --------------------------------------------
-  if (isIOS) {
-    return true;
-  }
-
-  // --- 3) android legacy ua fallback -------------------------------------
-  if (isAndroid) {
-    const isAndroidPhone = /Mobile/i.test(ua);
-    const isAndroidTablet = !isAndroidPhone;
-    if (isAndroidPhone || isAndroidTablet) {
-      const looksTouchTablet =
-        matchMedia?.("(hover: none)").matches &&
-        matchMedia?.("(pointer: coarse)").matches;
-      return looksTouchTablet;
-    }
-  }
-
-  // --- 4) last resort desktop exclusion ----------------------------------
-  const looksDesktopPlatform =
-    /Win|Linux|CrOS|Mac/.test(platform) ||
-    /Windows NT|X11|CrOS|Macintosh/.test(ua);
-  if (looksDesktopPlatform) {
-    return false;
-  }
-  return false;
-};
-
-export const getFormFactor = (
-  editorWidth: number,
-  editorHeight: number,
-): EditorInterface["formFactor"] => {
-  if (isMobileBreakpoint(editorWidth, editorHeight)) {
-    return "phone";
-  }
-
-  if (isTabletBreakpoint(editorWidth, editorHeight)) {
-    return "tablet";
-  }
-
-  return "desktop";
-};
-
-export const deriveStylesPanelMode = (
-  editorInterface: EditorInterface,
-): StylesPanelMode => {
-  if (editorInterface.formFactor === "phone") {
-    return "mobile";
-  }
-
-  if (editorInterface.formFactor === "tablet") {
-    return "compact";
-  }
-
-  return editorInterface.desktopUIMode;
-};
-
-export const createUserAgentDescriptor = (
-  userAgentString: string,
-): EditorInterface["userAgent"] => {
-  const normalizedUA = userAgentString ?? "";
-  let platform: EditorInterface["userAgent"]["platform"] = "unknown";
-
-  if (isIOS) {
-    platform = "ios";
-  } else if (isAndroid) {
-    platform = "android";
-  } else if (normalizedUA) {
-    platform = "other";
-  }
-
-  return {
-    isMobileDevice: isMobileOrTablet(),
-    platform,
-  } as const;
-};
-
-export const loadDesktopUIModePreference = () => {
-  if (typeof window === "undefined") {
-    return null;
-  }
-
-  try {
-    const stored = window.localStorage.getItem(DESKTOP_UI_MODE_STORAGE_KEY);
-    if (stored === "compact" || stored === "full") {
-      return stored as EditorInterface["desktopUIMode"];
-    }
-  } catch (error) {
-    // ignore storage access issues (e.g., Safari private mode)
-  }
-
-  return null;
-};
-
-const persistDesktopUIMode = (mode: EditorInterface["desktopUIMode"]) => {
-  if (typeof window === "undefined") {
-    return;
-  }
-  try {
-    window.localStorage.setItem(DESKTOP_UI_MODE_STORAGE_KEY, mode);
-  } catch (error) {
-    // ignore storage access issues (e.g., Safari private mode)
-  }
-};
-
-export const setDesktopUIMode = (mode: EditorInterface["desktopUIMode"]) => {
-  if (mode !== "compact" && mode !== "full") {
-    return;
-  }
-
-  persistDesktopUIMode(mode);
-
-  return mode;
-};
@@ -22,10 +22,8 @@ export interface FontMetadata {
  };
  /** flag to indicate a deprecated font */
  deprecated?: true;
-  /**
-   * whether this is a font that users can use (= shown in font picker)
-   */
-  private?: true;
+  /** flag to indicate a server-side only font */
+  serverSide?: true;
  /** flag to indiccate a local-only font */
  local?: true;
  /** flag to indicate a fallback font */
@@ -46,7 +44,7 @@ export const FONT_METADATA: Record<number, FontMetadata> = {
      unitsPerEm: 1000,
      ascender: 1011,
      descender: -353,
-      lineHeight: 1.25,
+      lineHeight: 1.35,
    },
  },
  [FONT_FAMILY["Lilita One"]]: {
@@ -100,23 +98,14 @@ export const FONT_METADATA: Record<number, FontMetadata> = {
      descender: -434,
      lineHeight: 1.15,
    },
-    private: true,
-  },
-  [FONT_FAMILY.Assistant]: {
-    metrics: {
-      unitsPerEm: 2048,
-      ascender: 1021,
-      descender: -287,
-      lineHeight: 1.25,
-    },
-    private: true,
+    serverSide: true,
  },
  [FONT_FAMILY_FALLBACKS.Xiaolai]: {
    metrics: {
      unitsPerEm: 1000,
      ascender: 880,
      descender: -144,
-      lineHeight: 1.25,
+      lineHeight: 1.15,
    },
    fallback: true,
  },
@@ -1,5 +1,4 @@
 export * from "./binary-heap";
-export * from "./bounds";
 export * from "./colors";
 export * from "./constants";
 export * from "./font-metadata";
@@ -10,8 +9,3 @@ export * from "./promise-pool";
 export * from "./random";
 export * from "./url";
 export * from "./utils";
-export * from "./emitter";
-export * from "./appEventBus";
-export * from "./editorInterface";
-export * from "./versionedSnapshotStore";
-export { Debug } from "../debug";
@@ -1,4 +1,4 @@
-import { isDarwin } from "./editorInterface";
+import { isDarwin } from "./constants";

 import type { ValueOf } from "./utility-types";

@@ -68,12 +68,3 @@ export type MaybePromise<T> = T | Promise<T>;

 // get union of all keys from the union of types
 export type AllPossibleKeys<T> = T extends any ? keyof T : never;
-
-/** Strip all the methods or functions from a type */
-export type DTO<T> = {
-  [K in keyof T as T[K] extends Function ? never : K]: T[K];
-};
-
-export type MapEntry<M extends Map<any, any>> = M extends Map<infer K, infer V>
-  ? [K, V]
-  : never;
@@ -1,171 +0,0 @@
-import {
-  isTransparent,
-  mapFind,
-  reduceToCommonValue,
-} from "@excalidraw/common";
-import { vi } from "vitest";
-
-// Import directly to avoid the @excalidraw/common throttleRAF mock from setupTests.ts.
-import { throttleRAF } from "./utils";
-
-type RafCallback = FrameRequestCallback;
-
-describe("@excalidraw/common/utils", () => {
-  describe("isTransparent()", () => {
-    it("should return true when color is rgb transparent", () => {
-      expect(isTransparent("#ff00")).toEqual(true);
-      expect(isTransparent("#fff00000")).toEqual(true);
-      expect(isTransparent("transparent")).toEqual(true);
-    });
-
-    it("should return false when color is not transparent", () => {
-      expect(isTransparent("#ced4da")).toEqual(false);
-    });
-  });
-
-  describe("reduceToCommonValue()", () => {
-    it("should return the common value when all values are the same", () => {
-      expect(reduceToCommonValue([1, 1])).toEqual(1);
-      expect(reduceToCommonValue([0, 0])).toEqual(0);
-      expect(reduceToCommonValue(["a", "a"])).toEqual("a");
-      expect(reduceToCommonValue(new Set([1]))).toEqual(1);
-      expect(reduceToCommonValue([""])).toEqual("");
-      expect(reduceToCommonValue([0])).toEqual(0);
-
-      const o = {};
-      expect(reduceToCommonValue([o, o])).toEqual(o);
-
-      expect(
-        reduceToCommonValue([{ a: 1 }, { a: 1, b: 2 }], (o) => o.a),
-      ).toEqual(1);
-      expect(
-        reduceToCommonValue(new Set([{ a: 1 }, { a: 1, b: 2 }]), (o) => o.a),
-      ).toEqual(1);
-    });
-
-    it("should return `null` when values are different", () => {
-      expect(reduceToCommonValue([1, 2, 3])).toEqual(null);
-      expect(reduceToCommonValue(new Set([1, 2]))).toEqual(null);
-      expect(reduceToCommonValue([{ a: 1 }, { a: 2 }], (o) => o.a)).toEqual(
-        null,
-      );
-    });
-
-    it("should return `null` when some values are nullable", () => {
-      expect(reduceToCommonValue([1, null, 1])).toEqual(null);
-      expect(reduceToCommonValue([null, 1])).toEqual(null);
-      expect(reduceToCommonValue([1, undefined])).toEqual(null);
-      expect(reduceToCommonValue([undefined, 1])).toEqual(null);
-      expect(reduceToCommonValue([null])).toEqual(null);
-      expect(reduceToCommonValue([undefined])).toEqual(null);
-      expect(reduceToCommonValue([])).toEqual(null);
-    });
-  });
-
-  describe("mapFind()", () => {
-    it("should return the first mapped non-null element", () => {
-      {
-        let counter = 0;
-
-        const result = mapFind(["a", "b", "c"], (value) => {
-          counter++;
-          return value === "b" ? 42 : null;
-        });
-        expect(result).toEqual(42);
-        expect(counter).toBe(2);
-      }
-
-      expect(mapFind([1, 2], (value) => value * 0)).toBe(0);
-      expect(mapFind([1, 2], () => false)).toBe(false);
-      expect(mapFind([1, 2], () => "")).toBe("");
-    });
-
-    it("should return undefined if no mapped element is found", () => {
-      expect(mapFind([1, 2], () => undefined)).toBe(undefined);
-      expect(mapFind([1, 2], () => null)).toBe(undefined);
-    });
-  });
-
-  describe("throttleRAF()", () => {
-    let frameCallbacks: Map<number, RafCallback>;
-    let nextFrameId: number;
-
-    const runScheduledFrame = (timestamp = 16) => {
-      const callbacks = [...frameCallbacks.values()];
-      frameCallbacks.clear();
-      callbacks.forEach((callback) => callback(timestamp));
-    };
-
-    beforeEach(() => {
-      frameCallbacks = new Map();
-      nextFrameId = 0;
-
-      vi.spyOn(window, "requestAnimationFrame").mockImplementation(
-        (callback) => {
-          const frameId = ++nextFrameId;
-          frameCallbacks.set(frameId, callback);
-          return frameId;
-        },
-      );
-
-      vi.spyOn(window, "cancelAnimationFrame").mockImplementation((frameId) => {
-        frameCallbacks.delete(frameId);
-      });
-    });
-
-    afterEach(() => {
-      vi.restoreAllMocks();
-    });
-
-    it("should invoke the callback with the last args from the same frame", () => {
-      const fn = vi.fn();
-      const throttled = throttleRAF(fn);
-
-      throttled("first", 1);
-      throttled("second", 2);
-      throttled("last", 3);
-
-      expect(fn).not.toHaveBeenCalled();
-      expect(window.requestAnimationFrame).toHaveBeenCalledTimes(1);
-
-      runScheduledFrame();
-
-      expect(fn).toHaveBeenCalledTimes(1);
-      expect(fn).toHaveBeenCalledWith("last", 3);
-    });
-
-    it("should flush the pending callback immediately", () => {
-      const fn = vi.fn();
-      const throttled = throttleRAF(fn);
-
-      throttled("first");
-      throttled("last");
-
-      throttled.flush();
-
-      expect(window.cancelAnimationFrame).toHaveBeenCalledTimes(1);
-      expect(fn).toHaveBeenCalledTimes(1);
-      expect(fn).toHaveBeenCalledWith("last");
-
-      runScheduledFrame();
-
-      expect(fn).toHaveBeenCalledTimes(1);
-    });
-
-    it("should cancel the pending callback", () => {
-      const fn = vi.fn();
-      const throttled = throttleRAF(fn);
-
-      throttled("first");
-      throttled("last");
-
-      throttled.cancel();
-
-      expect(window.cancelAnimationFrame).toHaveBeenCalledTimes(1);
-
-      runScheduledFrame();
-
-      expect(fn).not.toHaveBeenCalled();
-    });
-  });
-});
@@ -1,8 +1,11 @@
-import { average } from "@excalidraw/math";
+import { average, pointFrom, type GlobalPoint } from "@excalidraw/math";

-import type { GlobalCoord } from "@excalidraw/math";
-
-import type { FontFamilyValues, FontString } from "@excalidraw/element/types";
+import type {
+  ExcalidrawBindableElement,
+  FontFamilyValues,
+  FontString,
+  ExcalidrawElement,
+} from "@excalidraw/element/types";

 import type {
  ActiveTool,
@@ -12,11 +15,13 @@ import type {
  Zoom,
 } from "@excalidraw/excalidraw/types";

+import { COLOR_PALETTE } from "./colors";
 import {
  DEFAULT_VERSION,
  ENV,
  FONT_FAMILY,
  getFontFamilyFallbacks,
+  isDarwin,
  WINDOWS_EMOJI_FALLBACK_FONT,
 } from "./constants";

@@ -87,9 +92,7 @@ export const isWritableElement = (
  (target instanceof HTMLInputElement &&
    (target.type === "text" ||
      target.type === "number" ||
-      target.type === "password" ||
-      target.type === "search")) ||
-  (target instanceof HTMLElement && target.closest(".cm-editor") !== null);
+      target.type === "password"));

 export const getFontFamilyString = ({
  fontFamily,
@@ -98,6 +101,7 @@ export const getFontFamilyString = ({
 }) => {
  for (const [fontFamilyString, id] of Object.entries(FONT_FAMILY)) {
    if (id === fontFamily) {
+      // TODO: we should fallback first to generic family names first
      return `${fontFamilyString}${getFontFamilyFallbacks(id)
        .map((x) => `, ${x}`)
        .join("")}`;
@@ -117,11 +121,6 @@ export const getFontString = ({
  return `${fontSize}px ${getFontFamilyString({ fontFamily })}` as FontString;
 };

-/** executes callback in the frame that's after the current one */
-export const nextAnimationFrame = async (cb: () => any) => {
-  requestAnimationFrame(() => requestAnimationFrame(cb));
-};
-
 export const debounce = <T extends any[]>(
  fn: (...args: T) => void,
  timeout: number,
@@ -151,27 +150,38 @@ export const debounce = <T extends any[]>(
  return ret;
 };

-// throttle callback to execute once per animation frame using the latest args
-export const throttleRAF = <T extends any[]>(fn: (...args: T) => void) => {
+// throttle callback to execute once per animation frame
+export const throttleRAF = <T extends any[]>(
+  fn: (...args: T) => void,
+  opts?: { trailing?: boolean },
+) => {
  let timerId: number | null = null;
  let lastArgs: T | null = null;
+  let lastArgsTrailing: T | null = null;

-  const scheduleFunc = () => {
+  const scheduleFunc = (args: T) => {
    timerId = window.requestAnimationFrame(() => {
      timerId = null;
-      const args = lastArgs;
+      fn(...args);
      lastArgs = null;
-
-      if (args) {
-        fn(...args);
+      if (lastArgsTrailing) {
+        lastArgs = lastArgsTrailing;
+        lastArgsTrailing = null;
+        scheduleFunc(lastArgs);
      }
    });
  };

  const ret = (...args: T) => {
+    if (isTestEnv()) {
+      fn(...args);
+      return;
+    }
    lastArgs = args;
    if (timerId === null) {
-      scheduleFunc();
+      scheduleFunc(lastArgs);
+    } else if (opts?.trailing) {
+      lastArgsTrailing = args;
    }
  };
  ret.flush = () => {
@@ -180,12 +190,12 @@ export const throttleRAF = <T extends any[]>(fn: (...args: T) => void) => {
      timerId = null;
    }
    if (lastArgs) {
-      fn(...lastArgs);
-      lastArgs = null;
+      fn(...(lastArgsTrailing || lastArgs));
+      lastArgs = lastArgsTrailing = null;
    }
  };
  ret.cancel = () => {
-    lastArgs = null;
+    lastArgs = lastArgsTrailing = null;
    if (timerId !== null) {
      cancelAnimationFrame(timerId);
      timerId = null;
@@ -369,10 +379,6 @@ export const removeSelection = () => {

 export const distance = (x: number, y: number) => Math.abs(x - y);

-export const isSelectionLikeTool = (type: ToolType | "custom") => {
-  return type === "selection" || type === "lasso";
-};
-
 export const updateActiveTool = (
  appState: Pick<AppState, "activeTool">,
  data: ((
@@ -414,6 +420,19 @@ export const allowFullScreen = () =>

 export const exitFullScreen = () => document.exitFullscreen();

+export const getShortcutKey = (shortcut: string): string => {
+  shortcut = shortcut
+    .replace(/\bAlt\b/i, "Alt")
+    .replace(/\bShift\b/i, "Shift")
+    .replace(/\b(Enter|Return)\b/i, "Enter");
+  if (isDarwin) {
+    return shortcut
+      .replace(/\bCtrlOrCmd\b/gi, "Cmd")
+      .replace(/\bAlt\b/i, "Option");
+  }
+  return shortcut.replace(/\bCtrlOrCmd\b/gi, "Ctrl");
+};
+
 export const viewportCoordsToSceneCoords = (
  { clientX, clientY }: { clientX: number; clientY: number },
  {
@@ -433,7 +452,7 @@ export const viewportCoordsToSceneCoords = (
  const x = (clientX - offsetLeft) / zoom.value - scrollX;
  const y = (clientY - offsetTop) / zoom.value - scrollY;

-  return { x, y } as GlobalCoord;
+  return { x, y };
 };

 export const sceneCoordsToViewportCoords = (
@@ -525,20 +544,19 @@ export const findLastIndex = <T>(
  return -1;
 };

-/** returns the first non-null mapped value */
-export const mapFind = <T, K>(
-  collection: readonly T[],
-  iteratee: (value: T, index: number) => K | undefined | null,
-): K | undefined => {
-  for (let idx = 0; idx < collection.length; idx++) {
-    const result = iteratee(collection[idx], idx);
-    if (result != null) {
-      return result;
-    }
-  }
-  return undefined;
+export const isTransparent = (color: string) => {
+  const isRGBTransparent = color.length === 5 && color.substr(4, 1) === "0";
+  const isRRGGBBTransparent = color.length === 9 && color.substr(7, 2) === "00";
+  return (
+    isRGBTransparent ||
+    isRRGGBBTransparent ||
+    color === COLOR_PALETTE.transparent
+  );
 };

+export const isBindingFallthroughEnabled = (el: ExcalidrawBindableElement) =>
+  el.fillStyle !== "solid" || isTransparent(el.backgroundColor);
+
 export type ResolvablePromise<T> = Promise<T> & {
  resolve: [T] extends [undefined]
    ? (value?: MaybePromise<Awaited<T>>) => void
@@ -662,7 +680,7 @@ export const arrayToMap = <T extends { id: string } | string>(
  return items.reduce((acc: Map<string, T>, element) => {
    acc.set(typeof element === "string" ? element : element.id, element);
    return acc;
-  }, new Map() as Map<string, T>);
+  }, new Map());
 };

 export const arrayToMapWithIndex = <T extends { id: string }>(
@@ -680,8 +698,8 @@ export const arrayToObject = <T>(
  array: readonly T[],
  groupBy?: (value: T) => string | number,
 ) =>
-  array.reduce((acc, value, idx) => {
-    acc[groupBy ? groupBy(value) : idx] = value;
+  array.reduce((acc, value) => {
+    acc[groupBy ? groupBy(value) : String(value)] = value;
    return acc;
  }, {} as { [key: string]: T });

@@ -717,25 +735,6 @@ export const arrayToList = <T>(array: readonly T[]): Node<T>[] =>
    return acc;
  }, [] as Node<T>[]);

-/**
- * Converts a readonly array or map into an iterable.
- * Useful for avoiding entry allocations when iterating object / map on each iteration.
- */
-export const toIterable = <T>(
-  values: readonly T[] | ReadonlyMap<string, T>,
-): Iterable<T> => {
-  return Array.isArray(values) ? values : values.values();
-};
-
-/**
- * Converts a readonly array or map into an array.
- */
-export const toArray = <T>(
-  values: readonly T[] | ReadonlyMap<string, T>,
-): T[] => {
-  return Array.isArray(values) ? values : Array.from(toIterable(values));
-};
-
 export const isTestEnv = () => import.meta.env.MODE === ENV.TEST;

 export const isDevEnv = () => import.meta.env.MODE === ENV.DEVELOPMENT;
@@ -1138,69 +1137,39 @@ export const normalizeEOL = (str: string) => {
 };

 // -----------------------------------------------------------------------------
-export type HasBrand<T> = {
+type HasBrand<T> = {
  // eslint-disable-next-line @typescript-eslint/no-unused-vars
-  [K in keyof T]: K extends `~brand${infer _}` | "_brand" ? true : never;
+  [K in keyof T]: K extends `~brand${infer _}` ? true : never;
 }[keyof T];

 type RemoveAllBrands<T> = HasBrand<T> extends true
  ? {
      // eslint-disable-next-line @typescript-eslint/no-unused-vars
-      [K in keyof T as K extends `~brand~${infer _}` | "_brand"
-        ? never
-        : K]: T[K];
+      [K in keyof T as K extends `~brand~${infer _}` ? never : K]: T[K];
    }
-  : T;
+  : never;

-// For accepting values - uses loose matching for branded types
-// Preserves readonly modifier: mutable array requires mutable input
-type UnbrandForValue<T> = T extends Map<infer E, infer F>
-  ? Map<UnbrandForValue<E>, UnbrandForValue<F>>
+// adapted from https://github.com/colinhacks/zod/discussions/1994#discussioncomment-6068940
+// currently does not cover all types (e.g. tuples, promises...)
+type Unbrand<T> = T extends Map<infer E, infer F>
+  ? Map<E, F>
  : T extends Set<infer E>
-  ? Set<UnbrandForValue<E>>
-  : T extends readonly any[]
-  ? T extends any[]
-    ? unknown[] // mutable array - require mutable input
-    : readonly unknown[] // readonly array - accept readonly input
+  ? Set<E>
+  : T extends Array<infer E>
+  ? Array<E>
  : RemoveAllBrands<T>;

-// For return types - preserves array element unbranding
-export type Unbrand<T> = T extends Map<infer E, infer F>
-  ? Map<Unbrand<E>, Unbrand<F>>
-  : T extends Set<infer E>
-  ? Set<Unbrand<E>>
-  : T extends readonly (infer E)[]
-  ? Array<Unbrand<E>>
-  : RemoveAllBrands<T>;
-
-export type CombineBrands<BrandedType, CurrentType> =
-  BrandedType extends readonly (infer BE)[]
-    ? CurrentType extends readonly (infer CE)[]
-      ? Array<CE & BE>
-      : CurrentType & BrandedType
-    : CurrentType & BrandedType;
-
-export type CombineBrandsIfNeeded<T, Required> = [T] extends [Required]
-  ? T[]
-  : HasBrand<T> extends true
-  ? CombineBrands<T, Required>[]
-  : Required[];
-
 /**
 * Makes type into a branded type, ensuring that value is assignable to
- * the base unbranded type. Optionally you can explicitly supply current value
+ * the base ubranded type. Optionally you can explicitly supply current value
 * type to combine both (useful for composite branded types. Make sure you
 * compose branded types which are not composite themselves.)
 */
-export function toBrandedType<BrandedType>(
-  value: UnbrandForValue<BrandedType>,
-): BrandedType;
-export function toBrandedType<BrandedType, CurrentType>(
-  value: CurrentType,
-): CombineBrands<BrandedType, CurrentType>;
-export function toBrandedType(value: unknown) {
-  return value;
-}
+export const toBrandedType = <BrandedType, CurrentType = BrandedType>(
+  value: Unbrand<BrandedType>,
+) => {
+  return value as CurrentType & BrandedType;
+};

 // -----------------------------------------------------------------------------

@@ -1236,96 +1205,31 @@ export const escapeDoubleQuotes = (str: string) => {
 export const castArray = <T>(value: T | T[]): T[] =>
  Array.isArray(value) ? value : [value];

+export const elementCenterPoint = (
+  element: ExcalidrawElement,
+  xOffset: number = 0,
+  yOffset: number = 0,
+) => {
+  const { x, y, width, height } = element;
+
+  const centerXPoint = x + width / 2 + xOffset;
+
+  const centerYPoint = y + height / 2 + yOffset;
+
+  return pointFrom<GlobalPoint>(centerXPoint, centerYPoint);
+};
+
 /** hack for Array.isArray type guard not working with readonly value[] */
 export const isReadonlyArray = (value?: any): value is readonly any[] => {
  return Array.isArray(value);
 };

 export const sizeOf = (
-  value:
-    | readonly unknown[]
-    | Readonly<Map<string, unknown>>
-    | Readonly<Record<string, unknown>>
-    | ReadonlySet<unknown>,
+  value: readonly number[] | Readonly<Map<any, any>> | Record<any, any>,
 ): number => {
  return isReadonlyArray(value)
    ? value.length
-    : value instanceof Map || value instanceof Set
+    : value instanceof Map
    ? value.size
    : Object.keys(value).length;
 };
-
-export const reduceToCommonValue = <T, R = T>(
-  collection: readonly T[] | ReadonlySet<T>,
-  getValue?: (item: T) => R,
-): R | null => {
-  if (sizeOf(collection) === 0) {
-    return null;
-  }
-
-  const valueExtractor = getValue || ((item: T) => item as unknown as R);
-
-  let commonValue: R | null = null;
-
-  for (const item of collection) {
-    const value = valueExtractor(item);
-    if ((commonValue === null || commonValue === value) && value != null) {
-      commonValue = value;
-    } else {
-      return null;
-    }
-  }
-
-  return commonValue;
-};
-
-type FEATURE_FLAGS = {
-  COMPLEX_BINDINGS: boolean;
-};
-
-const FEATURE_FLAGS_STORAGE_KEY = "excalidraw-feature-flags";
-const DEFAULT_FEATURE_FLAGS: FEATURE_FLAGS = {
-  COMPLEX_BINDINGS: false,
-};
-let featureFlags: FEATURE_FLAGS | null = null;
-
-export const getFeatureFlag = <F extends keyof FEATURE_FLAGS>(
-  flag: F,
-): FEATURE_FLAGS[F] => {
-  if (!featureFlags) {
-    try {
-      const serializedFlags = localStorage.getItem(FEATURE_FLAGS_STORAGE_KEY);
-      if (serializedFlags) {
-        const flags = JSON.parse(serializedFlags);
-        featureFlags = flags ?? DEFAULT_FEATURE_FLAGS;
-      }
-    } catch {}
-  }
-
-  return (featureFlags || DEFAULT_FEATURE_FLAGS)[flag];
-};
-
-export const setFeatureFlag = <F extends keyof FEATURE_FLAGS>(
-  flag: F,
-  value: FEATURE_FLAGS[F],
-) => {
-  try {
-    featureFlags = {
-      ...(featureFlags || DEFAULT_FEATURE_FLAGS),
-      [flag]: value,
-    };
-    localStorage.setItem(
-      FEATURE_FLAGS_STORAGE_KEY,
-      JSON.stringify(featureFlags),
-    );
-  } catch (e) {
-    console.error("unable to set feature flag", e);
-  }
-};
-
-export const oneOf = <N extends string | number | symbol | null, H extends N>(
-  needle: N,
-  haystack: readonly H[],
-): needle is H => {
-  return haystack.includes(needle as any);
-};
@@ -1,70 +0,0 @@
-export type VersionedSnapshot<T> = Readonly<{
-  version: number;
-  value: T;
-}>;
-
-export class VersionedSnapshotStore<T> {
-  private version = 0;
-  private value: T;
-  private readonly waiters = new Set<
-    (snapshot: VersionedSnapshot<T>) => void
-  >();
-  private readonly subscribers = new Set<
-    (snapshot: VersionedSnapshot<T>) => void
-  >();
-
-  constructor(
-    initialValue: T,
-    private readonly isEqual: (prev: T, next: T) => boolean = Object.is,
-  ) {
-    this.value = initialValue;
-  }
-
-  public getSnapshot(): VersionedSnapshot<T> {
-    return { version: this.version, value: this.value };
-  }
-
-  public set(nextValue: T): boolean {
-    if (this.isEqual(this.value, nextValue)) {
-      return false;
-    }
-
-    this.value = nextValue;
-    this.version += 1;
-
-    const snapshot = this.getSnapshot();
-
-    for (const subscriber of this.subscribers) {
-      subscriber(snapshot);
-    }
-    for (const waiter of this.waiters) {
-      waiter(snapshot);
-    }
-    this.waiters.clear();
-
-    return true;
-  }
-
-  public update(updater: (prev: T) => T): boolean {
-    return this.set(updater(this.value));
-  }
-
-  public subscribe(
-    subscriber: (snapshot: VersionedSnapshot<T>) => void,
-  ): () => void {
-    this.subscribers.add(subscriber);
-    return () => {
-      this.subscribers.delete(subscriber);
-    };
-  }
-
-  public pull(sinceVersion = -1): Promise<VersionedSnapshot<T>> {
-    if (this.version !== sinceVersion) {
-      return Promise.resolve(this.getSnapshot());
-    }
-
-    return new Promise((resolve) => {
-      this.waiters.add(resolve);
-    });
-  }
-}
@@ -1,6 +1,6 @@
 {
  "name": "@excalidraw/element",
-  "version": "0.18.0",
+  "version": "0.1.0",
  "type": "module",
  "types": "./dist/types/element/src/index.d.ts",
  "main": "./dist/prod/index.js",
@@ -13,16 +13,7 @@
      "default": "./dist/prod/index.js"
    },
    "./*": {
-      "types": "./dist/types/element/src/*.d.ts",
-      "development": "./dist/dev/index.js",
-      "production": "./dist/prod/index.js",
-      "default": "./dist/prod/index.js"
-    },
-    "./visualdebug": {
-      "types": "./dist/types/element/src/visualdebug.d.ts",
-      "development": "./dist/dev/visualdebug.js",
-      "production": "./dist/prod/visualdebug.js",
-      "default": "./dist/prod/visualdebug.js"
+      "types": "./../element/dist/types/element/src/*.d.ts"
    }
  },
  "files": [
@@ -59,11 +50,7 @@
  "bugs": "https://github.com/excalidraw/excalidraw/issues",
  "repository": "https://github.com/excalidraw/excalidraw",
  "scripts": {
-    "gen:types": "rimraf types && tsc",
-    "build:esm": "rimraf dist && node ../../scripts/buildBase.js && yarn gen:types"
-  },
-  "dependencies": {
-    "@excalidraw/common": "0.18.0",
-    "@excalidraw/math": "0.18.0"
+    "gen:types": "rm -rf types && tsc",
+    "build:esm": "rm -rf dist && node ../../scripts/buildBase.js && yarn gen:types"
  }
 }
@@ -0,0 +1,613 @@
+import { simplify } from "points-on-curve";
+
+import { pointFrom, pointDistance, type LocalPoint } from "@excalidraw/math";
+import { ROUGHNESS, isTransparent, assertNever } from "@excalidraw/common";
+
+import type { Mutable } from "@excalidraw/common/utility-types";
+
+import type { EmbedsValidationStatus } from "@excalidraw/excalidraw/types";
+import type { ElementShapes } from "@excalidraw/excalidraw/scene/types";
+
+import {
+  isElbowArrow,
+  isEmbeddableElement,
+  isIframeElement,
+  isIframeLikeElement,
+  isLinearElement,
+} from "./typeChecks";
+import { getCornerRadius, isPathALoop } from "./shapes";
+import { headingForPointIsHorizontal } from "./heading";
+
+import { canChangeRoundness } from "./comparisons";
+import { generateFreeDrawShape } from "./renderElement";
+import { getArrowheadPoints, getDiamondPoints } from "./bounds";
+
+import type {
+  ExcalidrawElement,
+  NonDeletedExcalidrawElement,
+  ExcalidrawSelectionElement,
+  ExcalidrawLinearElement,
+  Arrowhead,
+} from "./types";
+
+import type { Drawable, Options } from "roughjs/bin/core";
+import type { RoughGenerator } from "roughjs/bin/generator";
+import type { Point as RoughPoint } from "roughjs/bin/geometry";
+
+const getDashArrayDashed = (strokeWidth: number) => [8, 8 + strokeWidth];
+
+const getDashArrayDotted = (strokeWidth: number) => [1.5, 6 + strokeWidth];
+
+function adjustRoughness(element: ExcalidrawElement): number {
+  const roughness = element.roughness;
+
+  const maxSize = Math.max(element.width, element.height);
+  const minSize = Math.min(element.width, element.height);
+
+  // don't reduce roughness if
+  if (
+    // both sides relatively big
+    (minSize >= 20 && maxSize >= 50) ||
+    // is round & both sides above 15px
+    (minSize >= 15 &&
+      !!element.roundness &&
+      canChangeRoundness(element.type)) ||
+    // relatively long linear element
+    (isLinearElement(element) && maxSize >= 50)
+  ) {
+    return roughness;
+  }
+
+  return Math.min(roughness / (maxSize < 10 ? 3 : 2), 2.5);
+}
+
+export const generateRoughOptions = (
+  element: ExcalidrawElement,
+  continuousPath = false,
+): Options => {
+  const options: Options = {
+    seed: element.seed,
+    strokeLineDash:
+      element.strokeStyle === "dashed"
+        ? getDashArrayDashed(element.strokeWidth)
+        : element.strokeStyle === "dotted"
+        ? getDashArrayDotted(element.strokeWidth)
+        : undefined,
+    // for non-solid strokes, disable multiStroke because it tends to make
+    // dashes/dots overlay each other
+    disableMultiStroke: element.strokeStyle !== "solid",
+    // for non-solid strokes, increase the width a bit to make it visually
+    // similar to solid strokes, because we're also disabling multiStroke
+    strokeWidth:
+      element.strokeStyle !== "solid"
+        ? element.strokeWidth + 0.5
+        : element.strokeWidth,
+    // when increasing strokeWidth, we must explicitly set fillWeight and
+    // hachureGap because if not specified, roughjs uses strokeWidth to
+    // calculate them (and we don't want the fills to be modified)
+    fillWeight: element.strokeWidth / 2,
+    hachureGap: element.strokeWidth * 4,
+    roughness: adjustRoughness(element),
+    stroke: element.strokeColor,
+    preserveVertices:
+      continuousPath || element.roughness < ROUGHNESS.cartoonist,
+  };
+
+  switch (element.type) {
+    case "rectangle":
+    case "iframe":
+    case "embeddable":
+    case "diamond":
+    case "ellipse": {
+      options.fillStyle = element.fillStyle;
+      options.fill = isTransparent(element.backgroundColor)
+        ? undefined
+        : element.backgroundColor;
+      if (element.type === "ellipse") {
+        options.curveFitting = 1;
+      }
+      return options;
+    }
+    case "line":
+    case "freedraw": {
+      if (isPathALoop(element.points)) {
+        options.fillStyle = element.fillStyle;
+        options.fill =
+          element.backgroundColor === "transparent"
+            ? undefined
+            : element.backgroundColor;
+      }
+      return options;
+    }
+    case "arrow":
+      return options;
+    default: {
+      throw new Error(`Unimplemented type ${element.type}`);
+    }
+  }
+};
+
+const modifyIframeLikeForRoughOptions = (
+  element: NonDeletedExcalidrawElement,
+  isExporting: boolean,
+  embedsValidationStatus: EmbedsValidationStatus | null,
+) => {
+  if (
+    isIframeLikeElement(element) &&
+    (isExporting ||
+      (isEmbeddableElement(element) &&
+        embedsValidationStatus?.get(element.id) !== true)) &&
+    isTransparent(element.backgroundColor) &&
+    isTransparent(element.strokeColor)
+  ) {
+    return {
+      ...element,
+      roughness: 0,
+      backgroundColor: "#d3d3d3",
+      fillStyle: "solid",
+    } as const;
+  } else if (isIframeElement(element)) {
+    return {
+      ...element,
+      strokeColor: isTransparent(element.strokeColor)
+        ? "#000000"
+        : element.strokeColor,
+      backgroundColor: isTransparent(element.backgroundColor)
+        ? "#f4f4f6"
+        : element.backgroundColor,
+    };
+  }
+  return element;
+};
+
+const getArrowheadShapes = (
+  element: ExcalidrawLinearElement,
+  shape: Drawable[],
+  position: "start" | "end",
+  arrowhead: Arrowhead,
+  generator: RoughGenerator,
+  options: Options,
+  canvasBackgroundColor: string,
+) => {
+  const arrowheadPoints = getArrowheadPoints(
+    element,
+    shape,
+    position,
+    arrowhead,
+  );
+
+  if (arrowheadPoints === null) {
+    return [];
+  }
+
+  const generateCrowfootOne = (
+    arrowheadPoints: number[] | null,
+    options: Options,
+  ) => {
+    if (arrowheadPoints === null) {
+      return [];
+    }
+
+    const [, , x3, y3, x4, y4] = arrowheadPoints;
+
+    return [generator.line(x3, y3, x4, y4, options)];
+  };
+
+  switch (arrowhead) {
+    case "dot":
+    case "circle":
+    case "circle_outline": {
+      const [x, y, diameter] = arrowheadPoints;
+
+      // always use solid stroke for arrowhead
+      delete options.strokeLineDash;
+
+      return [
+        generator.circle(x, y, diameter, {
+          ...options,
+          fill:
+            arrowhead === "circle_outline"
+              ? canvasBackgroundColor
+              : element.strokeColor,
+
+          fillStyle: "solid",
+          stroke: element.strokeColor,
+          roughness: Math.min(0.5, options.roughness || 0),
+        }),
+      ];
+    }
+    case "triangle":
+    case "triangle_outline": {
+      const [x, y, x2, y2, x3, y3] = arrowheadPoints;
+
+      // always use solid stroke for arrowhead
+      delete options.strokeLineDash;
+
+      return [
+        generator.polygon(
+          [
+            [x, y],
+            [x2, y2],
+            [x3, y3],
+            [x, y],
+          ],
+          {
+            ...options,
+            fill:
+              arrowhead === "triangle_outline"
+                ? canvasBackgroundColor
+                : element.strokeColor,
+            fillStyle: "solid",
+            roughness: Math.min(1, options.roughness || 0),
+          },
+        ),
+      ];
+    }
+    case "diamond":
+    case "diamond_outline": {
+      const [x, y, x2, y2, x3, y3, x4, y4] = arrowheadPoints;
+
+      // always use solid stroke for arrowhead
+      delete options.strokeLineDash;
+
+      return [
+        generator.polygon(
+          [
+            [x, y],
+            [x2, y2],
+            [x3, y3],
+            [x4, y4],
+            [x, y],
+          ],
+          {
+            ...options,
+            fill:
+              arrowhead === "diamond_outline"
+                ? canvasBackgroundColor
+                : element.strokeColor,
+            fillStyle: "solid",
+            roughness: Math.min(1, options.roughness || 0),
+          },
+        ),
+      ];
+    }
+    case "crowfoot_one":
+      return generateCrowfootOne(arrowheadPoints, options);
+    case "bar":
+    case "arrow":
+    case "crowfoot_many":
+    case "crowfoot_one_or_many":
+    default: {
+      const [x2, y2, x3, y3, x4, y4] = arrowheadPoints;
+
+      if (element.strokeStyle === "dotted") {
+        // for dotted arrows caps, reduce gap to make it more legible
+        const dash = getDashArrayDotted(element.strokeWidth - 1);
+        options.strokeLineDash = [dash[0], dash[1] - 1];
+      } else {
+        // for solid/dashed, keep solid arrow cap
+        delete options.strokeLineDash;
+      }
+      options.roughness = Math.min(1, options.roughness || 0);
+      return [
+        generator.line(x3, y3, x2, y2, options),
+        generator.line(x4, y4, x2, y2, options),
+        ...(arrowhead === "crowfoot_one_or_many"
+          ? generateCrowfootOne(
+              getArrowheadPoints(element, shape, position, "crowfoot_one"),
+              options,
+            )
+          : []),
+      ];
+    }
+  }
+};
+
+/**
+ * Generates the roughjs shape for given element.
+ *
+ * Low-level. Use `ShapeCache.generateElementShape` instead.
+ *
+ * @private
+ */
+export const _generateElementShape = (
+  element: Exclude<NonDeletedExcalidrawElement, ExcalidrawSelectionElement>,
+  generator: RoughGenerator,
+  {
+    isExporting,
+    canvasBackgroundColor,
+    embedsValidationStatus,
+  }: {
+    isExporting: boolean;
+    canvasBackgroundColor: string;
+    embedsValidationStatus: EmbedsValidationStatus | null;
+  },
+): Drawable | Drawable[] | null => {
+  switch (element.type) {
+    case "rectangle":
+    case "iframe":
+    case "embeddable": {
+      let shape: ElementShapes[typeof element.type];
+      // this is for rendering the stroke/bg of the embeddable, especially
+      // when the src url is not set
+
+      if (element.roundness) {
+        const w = element.width;
+        const h = element.height;
+        const r = getCornerRadius(Math.min(w, h), element);
+        shape = generator.path(
+          `M ${r} 0 L ${w - r} 0 Q ${w} 0, ${w} ${r} L ${w} ${
+            h - r
+          } Q ${w} ${h}, ${w - r} ${h} L ${r} ${h} Q 0 ${h}, 0 ${
+            h - r
+          } L 0 ${r} Q 0 0, ${r} 0`,
+          generateRoughOptions(
+            modifyIframeLikeForRoughOptions(
+              element,
+              isExporting,
+              embedsValidationStatus,
+            ),
+            true,
+          ),
+        );
+      } else {
+        shape = generator.rectangle(
+          0,
+          0,
+          element.width,
+          element.height,
+          generateRoughOptions(
+            modifyIframeLikeForRoughOptions(
+              element,
+              isExporting,
+              embedsValidationStatus,
+            ),
+            false,
+          ),
+        );
+      }
+      return shape;
+    }
+    case "diamond": {
+      let shape: ElementShapes[typeof element.type];
+
+      const [topX, topY, rightX, rightY, bottomX, bottomY, leftX, leftY] =
+        getDiamondPoints(element);
+      if (element.roundness) {
+        const verticalRadius = getCornerRadius(Math.abs(topX - leftX), element);
+
+        const horizontalRadius = getCornerRadius(
+          Math.abs(rightY - topY),
+          element,
+        );
+
+        shape = generator.path(
+          `M ${topX + verticalRadius} ${topY + horizontalRadius} L ${
+            rightX - verticalRadius
+          } ${rightY - horizontalRadius}
+            C ${rightX} ${rightY}, ${rightX} ${rightY}, ${
+            rightX - verticalRadius
+          } ${rightY + horizontalRadius}
+            L ${bottomX + verticalRadius} ${bottomY - horizontalRadius}
+            C ${bottomX} ${bottomY}, ${bottomX} ${bottomY}, ${
+            bottomX - verticalRadius
+          } ${bottomY - horizontalRadius}
+            L ${leftX + verticalRadius} ${leftY + horizontalRadius}
+            C ${leftX} ${leftY}, ${leftX} ${leftY}, ${leftX + verticalRadius} ${
+            leftY - horizontalRadius
+          }
+            L ${topX - verticalRadius} ${topY + horizontalRadius}
+            C ${topX} ${topY}, ${topX} ${topY}, ${topX + verticalRadius} ${
+            topY + horizontalRadius
+          }`,
+          generateRoughOptions(element, true),
+        );
+      } else {
+        shape = generator.polygon(
+          [
+            [topX, topY],
+            [rightX, rightY],
+            [bottomX, bottomY],
+            [leftX, leftY],
+          ],
+          generateRoughOptions(element),
+        );
+      }
+      return shape;
+    }
+    case "ellipse": {
+      const shape: ElementShapes[typeof element.type] = generator.ellipse(
+        element.width / 2,
+        element.height / 2,
+        element.width,
+        element.height,
+        generateRoughOptions(element),
+      );
+      return shape;
+    }
+    case "line":
+    case "arrow": {
+      let shape: ElementShapes[typeof element.type];
+      const options = generateRoughOptions(element);
+
+      // points array can be empty in the beginning, so it is important to add
+      // initial position to it
+      const points = element.points.length
+        ? element.points
+        : [pointFrom<LocalPoint>(0, 0)];
+
+      if (isElbowArrow(element)) {
+        // NOTE (mtolmacs): Temporary fix for extremely big arrow shapes
+        if (
+          !points.every(
+            (point) => Math.abs(point[0]) <= 1e6 && Math.abs(point[1]) <= 1e6,
+          )
+        ) {
+          console.error(
+            `Elbow arrow with extreme point positions detected. Arrow not rendered.`,
+            element.id,
+            JSON.stringify(points),
+          );
+          shape = [];
+        } else {
+          shape = [
+            generator.path(
+              generateElbowArrowShape(points, 16),
+              generateRoughOptions(element, true),
+            ),
+          ];
+        }
+      } else if (!element.roundness) {
+        // curve is always the first element
+        // this simplifies finding the curve for an element
+        if (options.fill) {
+          shape = [
+            generator.polygon(points as unknown as RoughPoint[], options),
+          ];
+        } else {
+          shape = [
+            generator.linearPath(points as unknown as RoughPoint[], options),
+          ];
+        }
+      } else {
+        shape = [generator.curve(points as unknown as RoughPoint[], options)];
+      }
+
+      // add lines only in arrow
+      if (element.type === "arrow") {
+        const { startArrowhead = null, endArrowhead = "arrow" } = element;
+
+        if (startArrowhead !== null) {
+          const shapes = getArrowheadShapes(
+            element,
+            shape,
+            "start",
+            startArrowhead,
+            generator,
+            options,
+            canvasBackgroundColor,
+          );
+          shape.push(...shapes);
+        }
+
+        if (endArrowhead !== null) {
+          if (endArrowhead === undefined) {
+            // Hey, we have an old arrow here!
+          }
+
+          const shapes = getArrowheadShapes(
+            element,
+            shape,
+            "end",
+            endArrowhead,
+            generator,
+            options,
+            canvasBackgroundColor,
+          );
+          shape.push(...shapes);
+        }
+      }
+      return shape;
+    }
+    case "freedraw": {
+      let shape: ElementShapes[typeof element.type];
+      generateFreeDrawShape(element);
+
+      if (isPathALoop(element.points)) {
+        // generate rough polygon to fill freedraw shape
+        const simplifiedPoints = simplify(
+          element.points as Mutable<LocalPoint[]>,
+          0.75,
+        );
+        shape = generator.curve(simplifiedPoints as [number, number][], {
+          ...generateRoughOptions(element),
+          stroke: "none",
+        });
+      } else {
+        shape = null;
+      }
+      return shape;
+    }
+    case "frame":
+    case "magicframe":
+    case "text":
+    case "image": {
+      const shape: ElementShapes[typeof element.type] = null;
+      // we return (and cache) `null` to make sure we don't regenerate
+      // `element.canvas` on rerenders
+      return shape;
+    }
+    default: {
+      assertNever(
+        element,
+        `generateElementShape(): Unimplemented type ${(element as any)?.type}`,
+      );
+      return null;
+    }
+  }
+};
+
+const generateElbowArrowShape = (
+  points: readonly LocalPoint[],
+  radius: number,
+) => {
+  const subpoints = [] as [number, number][];
+  for (let i = 1; i < points.length - 1; i += 1) {
+    const prev = points[i - 1];
+    const next = points[i + 1];
+    const point = points[i];
+    const prevIsHorizontal = headingForPointIsHorizontal(point, prev);
+    const nextIsHorizontal = headingForPointIsHorizontal(next, point);
+    const corner = Math.min(
+      radius,
+      pointDistance(points[i], next) / 2,
+      pointDistance(points[i], prev) / 2,
+    );
+
+    if (prevIsHorizontal) {
+      if (prev[0] < point[0]) {
+        // LEFT
+        subpoints.push([points[i][0] - corner, points[i][1]]);
+      } else {
+        // RIGHT
+        subpoints.push([points[i][0] + corner, points[i][1]]);
+      }
+    } else if (prev[1] < point[1]) {
+      // UP
+      subpoints.push([points[i][0], points[i][1] - corner]);
+    } else {
+      subpoints.push([points[i][0], points[i][1] + corner]);
+    }
+
+    subpoints.push(points[i] as [number, number]);
+
+    if (nextIsHorizontal) {
+      if (next[0] < point[0]) {
+        // LEFT
+        subpoints.push([points[i][0] - corner, points[i][1]]);
+      } else {
+        // RIGHT
+        subpoints.push([points[i][0] + corner, points[i][1]]);
+      }
+    } else if (next[1] < point[1]) {
+      // UP
+      subpoints.push([points[i][0], points[i][1] - corner]);
+    } else {
+      // DOWN
+      subpoints.push([points[i][0], points[i][1] + corner]);
+    }
+  }
+
+  const d = [`M ${points[0][0]} ${points[0][1]}`];
+  for (let i = 0; i < subpoints.length; i += 3) {
+    d.push(`L ${subpoints[i][0]} ${subpoints[i][1]}`);
+    d.push(
+      `Q ${subpoints[i + 1][0]} ${subpoints[i + 1][1]}, ${
+        subpoints[i + 2][0]
+      } ${subpoints[i + 2][1]}`,
+    );
+  }
+  d.push(`L ${points[points.length - 1][0]} ${points[points.length - 1][1]}`);
+
+  return d.join(" ");
+};
@@ -0,0 +1,95 @@
+import { RoughGenerator } from "roughjs/bin/generator";
+
+import { COLOR_PALETTE } from "@excalidraw/common";
+
+import type {
+  AppState,
+  EmbedsValidationStatus,
+} from "@excalidraw/excalidraw/types";
+import type {
+  ElementShape,
+  ElementShapes,
+} from "@excalidraw/excalidraw/scene/types";
+
+import { _generateElementShape } from "./Shape";
+
+import { elementWithCanvasCache } from "./renderElement";
+
+import type { ExcalidrawElement, ExcalidrawSelectionElement } from "./types";
+
+import type { Drawable } from "roughjs/bin/core";
+
+export class ShapeCache {
+  private static rg = new RoughGenerator();
+  private static cache = new WeakMap<ExcalidrawElement, ElementShape>();
+
+  /**
+   * Retrieves shape from cache if available. Use this only if shape
+   * is optional and you have a fallback in case it's not cached.
+   */
+  public static get = <T extends ExcalidrawElement>(element: T) => {
+    return ShapeCache.cache.get(
+      element,
+    ) as T["type"] extends keyof ElementShapes
+      ? ElementShapes[T["type"]] | undefined
+      : ElementShape | undefined;
+  };
+
+  public static set = <T extends ExcalidrawElement>(
+    element: T,
+    shape: T["type"] extends keyof ElementShapes
+      ? ElementShapes[T["type"]]
+      : Drawable,
+  ) => ShapeCache.cache.set(element, shape);
+
+  public static delete = (element: ExcalidrawElement) =>
+    ShapeCache.cache.delete(element);
+
+  public static destroy = () => {
+    ShapeCache.cache = new WeakMap();
+  };
+
+  /**
+   * Generates & caches shape for element if not already cached, otherwise
+   * returns cached shape.
+   */
+  public static generateElementShape = <
+    T extends Exclude<ExcalidrawElement, ExcalidrawSelectionElement>,
+  >(
+    element: T,
+    renderConfig: {
+      isExporting: boolean;
+      canvasBackgroundColor: AppState["viewBackgroundColor"];
+      embedsValidationStatus: EmbedsValidationStatus;
+    } | null,
+  ) => {
+    // when exporting, always regenerated to guarantee the latest shape
+    const cachedShape = renderConfig?.isExporting
+      ? undefined
+      : ShapeCache.get(element);
+
+    // `null` indicates no rc shape applicable for this element type,
+    // but it's considered a valid cache value (= do not regenerate)
+    if (cachedShape !== undefined) {
+      return cachedShape;
+    }
+
+    elementWithCanvasCache.delete(element);
+
+    const shape = _generateElementShape(
+      element,
+      ShapeCache.rg,
+      renderConfig || {
+        isExporting: false,
+        canvasBackgroundColor: COLOR_PALETTE.white,
+        embedsValidationStatus: null,
+      },
+    ) as T["type"] extends keyof ElementShapes
+      ? ElementShapes[T["type"]]
+      : Drawable | null;
+
+    ShapeCache.cache.set(element, shape);
+
+    return shape;
+  };
+}
@@ -1,13 +1,12 @@
-import type { AppState } from "@excalidraw/excalidraw/types";
+import type Scene from "@excalidraw/excalidraw/scene/Scene";

 import { updateBoundElements } from "./binding";
 import { getCommonBoundingBox } from "./bounds";
-import { getSelectedElementsByGroup } from "./groups";
-
-import type { Scene } from "./Scene";
+import { mutateElement } from "./mutateElement";
+import { getMaximumGroups } from "./groups";

 import type { BoundingBox } from "./bounds";
-import type { ExcalidrawElement } from "./types";
+import type { ElementsMap, ExcalidrawElement } from "./types";

 export interface Alignment {
  position: "start" | "center" | "end";
@@ -16,14 +15,13 @@ export interface Alignment {

 export const alignElements = (
  selectedElements: ExcalidrawElement[],
+  elementsMap: ElementsMap,
  alignment: Alignment,
  scene: Scene,
-  appState: Readonly<AppState>,
 ): ExcalidrawElement[] => {
-  const groups: ExcalidrawElement[][] = getSelectedElementsByGroup(
+  const groups: ExcalidrawElement[][] = getMaximumGroups(
    selectedElements,
-    scene.getNonDeletedElementsMap(),
-    appState,
+    elementsMap,
  );
  const selectionBoundingBox = getCommonBoundingBox(selectedElements);

@@ -35,13 +33,12 @@ export const alignElements = (
    );
    return group.map((element) => {
      // update element
-      const updatedEle = scene.mutateElement(element, {
+      const updatedEle = mutateElement(element, {
        x: element.x + translation.x,
        y: element.y + translation.y,
      });
-
      // update bound elements
-      updateBoundElements(element, scene, {
+      updateBoundElements(element, scene.getNonDeletedElementsMap(), {
        simultaneouslyUpdated: group,
      });
      return updatedEle;
@@ -1,32 +0,0 @@
-import type { Arrowhead, AnyArrowhead } from "./types";
-
-export const normalizeArrowhead = (
-  arrowhead: AnyArrowhead | null | undefined,
-): Arrowhead | null => {
-  switch (arrowhead) {
-    case undefined:
-    case null:
-      return null;
-    case "dot":
-      return "circle";
-    case "crowfoot_one":
-      return "cardinality_one";
-    case "crowfoot_many":
-      return "cardinality_many";
-    case "crowfoot_one_or_many":
-      return "cardinality_one_or_many";
-    default:
-      return arrowhead;
-  }
-};
-
-export const getArrowheadForPicker = (
-  arrowhead: AnyArrowhead | null | undefined,
-): Arrowhead | null => {
-  const normalizedArrowhead = normalizeArrowhead(arrowhead);
-  if (normalizedArrowhead === null) {
-    return null;
-  }
-
-  return normalizedArrowhead;
-};
@@ -1,558 +0,0 @@
-import { pointDistance, pointFrom, type GlobalPoint } from "@excalidraw/math";
-import { invariant } from "@excalidraw/common";
-
-import type { AppState, NullableGridSize } from "@excalidraw/excalidraw/types";
-
-import {
-  bindBindingElement,
-  calculateFixedPointForNonElbowArrowBinding,
-  FOCUS_POINT_SIZE,
-  getBindingGap,
-  getGlobalFixedPointForBindableElement,
-  isBindingEnabled,
-  maxBindingDistance_simple,
-  unbindBindingElement,
-  updateBoundPoint,
-} from "../binding";
-import {
-  isBindableElement,
-  isBindingElement,
-  isElbowArrow,
-} from "../typeChecks";
-import { LinearElementEditor } from "../linearElementEditor";
-import { getHoveredElementForFocusPoint, hitElementItself } from "../collision";
-import { moveArrowAboveBindable } from "../zindex";
-
-import type {
-  ElementsMap,
-  ExcalidrawArrowElement,
-  ExcalidrawBindableElement,
-  NonDeletedSceneElementsMap,
-  PointsPositionUpdates,
-} from "../types";
-
-import type { Scene } from "../Scene";
-
-export const isFocusPointVisible = (
-  focusPoint: GlobalPoint,
-  arrow: ExcalidrawArrowElement,
-  bindableElement: ExcalidrawBindableElement,
-  elementsMap: ElementsMap,
-  appState: {
-    isBindingEnabled: AppState["isBindingEnabled"];
-    zoom: AppState["zoom"];
-  },
-  startOrEnd: "start" | "end",
-  ignoreOverlap = false,
-): boolean => {
-  // No focus point management for elbow arrows, because elbow arrows
-  // always have their focus point at the arrow point itself
-  if (
-    isElbowArrow(arrow) ||
-    !isBindingEnabled(appState) ||
-    arrow.points.length !== 2
-  ) {
-    return false;
-  }
-
-  // Avoid showing the focus point indicator if the focus point is essentially
-  // on top of the arrow point it belongs to itself, if not ignoring specifically
-  if (!ignoreOverlap) {
-    const associatedPointIdx =
-      arrow.startBinding?.elementId === bindableElement.id
-        ? 0
-        : arrow.points.length - 1;
-    const associatedArrowPoint =
-      LinearElementEditor.getPointAtIndexGlobalCoordinates(
-        arrow,
-        associatedPointIdx,
-        elementsMap,
-      );
-
-    if (
-      pointDistance(focusPoint, associatedArrowPoint) <
-      (FOCUS_POINT_SIZE * 1.5) / appState.zoom.value
-    ) {
-      return false;
-    }
-  }
-
-  const arrowPoint = LinearElementEditor.getPointAtIndexGlobalCoordinates(
-    arrow,
-    startOrEnd === "end" ? arrow.points.length - 1 : 0,
-    elementsMap,
-  );
-
-  // Check if the focus point is within the element's shape bounds
-  // Endpoint dragging takes precedence
-  return (
-    pointDistance(focusPoint, arrowPoint) >=
-      (FOCUS_POINT_SIZE * 1.5) / appState.zoom.value &&
-    hitElementItself({
-      element: bindableElement,
-      elementsMap,
-      point: focusPoint,
-      threshold: getBindingGap(bindableElement, arrow),
-      overrideShouldTestInside: true,
-    })
-  );
-};
-
-// Updates the arrow endpoints in "orbit" configuration
-const focusPointUpdate = (
-  arrow: ExcalidrawArrowElement,
-  bindableElement: ExcalidrawBindableElement | null,
-  isStartBinding: boolean,
-  elementsMap: NonDeletedSceneElementsMap,
-  scene: Scene,
-  appState: AppState,
-  switchToInsideBinding: boolean,
-) => {
-  const pointUpdates = new Map();
-
-  const bindingField = isStartBinding ? "startBinding" : "endBinding";
-  const adjacentBindingField = isStartBinding ? "endBinding" : "startBinding";
-  let currentBinding = arrow[bindingField];
-  let adjacentBinding = arrow[adjacentBindingField];
-
-  // Update the dragged focus point related end
-  if (currentBinding && bindableElement) {
-    // Update the targeted bindings
-    const boundToSameElement =
-      bindableElement &&
-      adjacentBinding &&
-      currentBinding.elementId === adjacentBinding.elementId;
-    if (switchToInsideBinding || boundToSameElement) {
-      currentBinding = {
-        ...currentBinding,
-        mode: "inside",
-      };
-    } else {
-      currentBinding = {
-        ...currentBinding,
-        mode: "orbit",
-      };
-    }
-
-    const pointIndex = isStartBinding ? 0 : arrow.points.length - 1;
-    const newPoint = updateBoundPoint(
-      arrow,
-      bindingField as "startBinding" | "endBinding",
-      currentBinding,
-      bindableElement,
-      elementsMap,
-      true,
-    );
-
-    if (newPoint) {
-      pointUpdates.set(pointIndex, { point: newPoint });
-    }
-  }
-
-  // Also update the adjacent end if it has a binding
-  if (adjacentBinding && adjacentBinding.mode === "orbit") {
-    const adjacentBindableElement = elementsMap.get(
-      adjacentBinding.elementId,
-    ) as ExcalidrawBindableElement;
-
-    if (
-      adjacentBindableElement &&
-      isBindableElement(adjacentBindableElement) &&
-      isBindingEnabled(appState)
-    ) {
-      // Same shape bound on both ends
-      const boundToSameElementAfterUpdate =
-        bindableElement && adjacentBinding.elementId === bindableElement.id;
-      if (switchToInsideBinding || boundToSameElementAfterUpdate) {
-        adjacentBinding = {
-          ...adjacentBinding,
-          mode: "inside",
-        };
-      } else {
-        adjacentBinding = {
-          ...adjacentBinding,
-          mode: "orbit",
-        };
-      }
-
-      const adjacentPointIndex = isStartBinding ? arrow.points.length - 1 : 0;
-      const adjacentNewPoint = updateBoundPoint(
-        arrow,
-        adjacentBindingField,
-        adjacentBinding,
-        adjacentBindableElement,
-        elementsMap,
-      );
-
-      if (adjacentNewPoint) {
-        pointUpdates.set(adjacentPointIndex, {
-          point: adjacentNewPoint,
-        });
-      }
-    }
-  }
-
-  if (pointUpdates.size > 0) {
-    LinearElementEditor.movePoints(arrow, scene, pointUpdates, {
-      [bindingField]: currentBinding,
-      [adjacentBindingField]: adjacentBinding,
-    });
-  }
-};
-
-export const handleFocusPointDrag = (
-  linearElementEditor: LinearElementEditor,
-  elementsMap: NonDeletedSceneElementsMap,
-  pointerCoords: { x: number; y: number },
-  scene: Scene,
-  appState: AppState,
-  gridSize: NullableGridSize,
-  switchToInsideBinding: boolean,
-) => {
-  const arrow = LinearElementEditor.getElement(
-    linearElementEditor.elementId,
-    elementsMap,
-  ) as any;
-
-  // Sanity checks
-  if (
-    !arrow ||
-    !isBindingElement(arrow) ||
-    isElbowArrow(arrow) ||
-    !linearElementEditor.hoveredFocusPointBinding ||
-    !linearElementEditor.draggedFocusPointBinding
-  ) {
-    return;
-  }
-
-  const isStartBinding =
-    linearElementEditor.draggedFocusPointBinding === "start";
-  const binding = isStartBinding ? arrow.startBinding : arrow.endBinding;
-  const { x: offsetX, y: offsetY } = linearElementEditor.pointerOffset;
-  const point = pointFrom<GlobalPoint>(
-    pointerCoords.x - offsetX,
-    pointerCoords.y - offsetY,
-  );
-  const bindingField = isStartBinding ? "startBinding" : "endBinding";
-  const hit = getHoveredElementForFocusPoint(
-    point,
-    arrow,
-    scene.getNonDeletedElements(),
-    elementsMap,
-    maxBindingDistance_simple(appState.zoom),
-  );
-
-  // Hovering a bindable element
-  if (hit && isBindingEnabled(appState)) {
-    // Break existing binding if bound to another shape or if binding is disabled
-    if (arrow[bindingField] && hit.id !== binding?.elementId) {
-      unbindBindingElement(
-        arrow,
-        linearElementEditor.draggedFocusPointBinding,
-        scene,
-      );
-    }
-
-    // Handle binding mode switch
-    const newMode =
-      switchToInsideBinding && arrow[bindingField]?.mode === "orbit"
-        ? "inside"
-        : !switchToInsideBinding && arrow[bindingField]?.mode === "inside"
-        ? "orbit"
-        : null;
-
-    // If no existing binding, create it
-    if (!arrow[bindingField] || newMode) {
-      // Create a new binding if none exists
-      bindBindingElement(
-        arrow,
-        hit,
-        newMode || "orbit",
-        linearElementEditor.draggedFocusPointBinding,
-        scene,
-        point,
-      );
-    }
-
-    // Update the binding's fixed point
-    scene.mutateElement(arrow, {
-      [bindingField]: {
-        ...arrow[bindingField],
-        elementId: hit.id,
-        mode: newMode || arrow[bindingField]?.mode || "orbit",
-        ...calculateFixedPointForNonElbowArrowBinding(
-          arrow,
-          hit,
-          linearElementEditor.draggedFocusPointBinding,
-          elementsMap,
-          point,
-        ),
-      },
-    });
-  } else {
-    // Not hovering any bindable element, move the arrow endpoint
-    const pointUpdates: PointsPositionUpdates = new Map();
-    const pointIndex = isStartBinding ? 0 : arrow.points.length - 1;
-    pointUpdates.set(pointIndex, {
-      point: LinearElementEditor.createPointAt(
-        arrow,
-        elementsMap,
-        point[0],
-        point[1],
-        gridSize,
-      ),
-    });
-    LinearElementEditor.movePoints(arrow, scene, pointUpdates);
-    if (arrow[bindingField]) {
-      unbindBindingElement(arrow, isStartBinding ? "start" : "end", scene);
-    }
-  }
-
-  // Update the arrow endpoints
-  focusPointUpdate(
-    arrow,
-    hit,
-    isStartBinding,
-    elementsMap,
-    scene,
-    appState,
-    switchToInsideBinding,
-  );
-
-  if (hit && isBindingEnabled(appState)) {
-    moveArrowAboveBindable(
-      point,
-      arrow,
-      scene.getElementsIncludingDeleted(),
-      elementsMap,
-      scene,
-      hit,
-    );
-  }
-};
-
-export const handleFocusPointPointerDown = (
-  arrow: ExcalidrawArrowElement,
-  pointerDownState: { origin: { x: number; y: number } },
-  elementsMap: NonDeletedSceneElementsMap,
-  appState: AppState,
-): {
-  hitFocusPoint: "start" | "end" | null;
-  pointerOffset: { x: number; y: number };
-} => {
-  const pointerPos = pointFrom(
-    pointerDownState.origin.x,
-    pointerDownState.origin.y,
-  );
-  const hitThreshold = (FOCUS_POINT_SIZE * 1.5) / appState.zoom.value;
-
-  // Check start binding focus point
-  if (arrow.startBinding?.elementId) {
-    const bindableElement = elementsMap.get(arrow.startBinding.elementId);
-    if (
-      bindableElement &&
-      isBindableElement(bindableElement) &&
-      !bindableElement.isDeleted
-    ) {
-      const focusPoint = getGlobalFixedPointForBindableElement(
-        arrow.startBinding.fixedPoint,
-        bindableElement,
-        elementsMap,
-      );
-      if (
-        isFocusPointVisible(
-          focusPoint,
-          arrow,
-          bindableElement,
-          elementsMap,
-          appState,
-          "start",
-        ) &&
-        pointDistance(pointerPos, focusPoint) <= hitThreshold
-      ) {
-        return {
-          hitFocusPoint: "start",
-          pointerOffset: {
-            x: pointerPos[0] - focusPoint[0],
-            y: pointerPos[1] - focusPoint[1],
-          },
-        };
-      }
-    }
-  }
-
-  // Check end binding focus point (only if start not already hit)
-  if (arrow.endBinding?.elementId) {
-    const bindableElement = elementsMap.get(arrow.endBinding.elementId);
-    if (
-      bindableElement &&
-      isBindableElement(bindableElement) &&
-      !bindableElement.isDeleted
-    ) {
-      const focusPoint = getGlobalFixedPointForBindableElement(
-        arrow.endBinding.fixedPoint,
-        bindableElement,
-        elementsMap,
-      );
-      if (
-        isFocusPointVisible(
-          focusPoint,
-          arrow,
-          bindableElement,
-          elementsMap,
-          appState,
-          "end",
-        ) &&
-        pointDistance(pointerPos, focusPoint) <= hitThreshold
-      ) {
-        return {
-          hitFocusPoint: "end",
-          pointerOffset: {
-            x: pointerPos[0] - focusPoint[0],
-            y: pointerPos[1] - focusPoint[1],
-          },
-        };
-      }
-    }
-  }
-
-  return {
-    hitFocusPoint: null,
-    pointerOffset: { x: 0, y: 0 },
-  };
-};
-
-export const handleFocusPointPointerUp = (
-  linearElementEditor: LinearElementEditor,
-  scene: Scene,
-) => {
-  invariant(
-    linearElementEditor.draggedFocusPointBinding,
-    "Must have a dragged focus point at pointer release",
-  );
-
-  const arrow = LinearElementEditor.getElement<ExcalidrawArrowElement>(
-    linearElementEditor.elementId,
-    scene.getNonDeletedElementsMap(),
-  );
-  invariant(arrow, "Arrow must be in the scene");
-
-  // Clean up
-  const bindingKey =
-    linearElementEditor.draggedFocusPointBinding === "start"
-      ? "startBinding"
-      : "endBinding";
-  const otherBindingKey =
-    linearElementEditor.draggedFocusPointBinding === "start"
-      ? "endBinding"
-      : "startBinding";
-  const boundElementId = arrow[bindingKey]?.elementId;
-  const otherBoundElementId = arrow[otherBindingKey]?.elementId;
-  const oldBoundElement =
-    boundElementId &&
-    scene
-      .getNonDeletedElements()
-      .find(
-        (element) =>
-          element.id !== boundElementId &&
-          element.id !== otherBoundElementId &&
-          isBindableElement(element) &&
-          element.boundElements?.find(({ id }) => id === arrow.id),
-      );
-  if (oldBoundElement) {
-    scene.mutateElement(oldBoundElement, {
-      boundElements: oldBoundElement.boundElements?.filter(
-        ({ id }) => id !== arrow.id,
-      ),
-    });
-  }
-
-  // Record the new bound element
-  const boundElement =
-    boundElementId && scene.getNonDeletedElementsMap().get(boundElementId);
-  if (boundElement) {
-    scene.mutateElement(boundElement, {
-      boundElements: [
-        ...(boundElement.boundElements || [])?.filter(
-          ({ id }) => id !== arrow.id,
-        ),
-        {
-          id: arrow.id,
-          type: "arrow",
-        },
-      ],
-    });
-  }
-};
-
-export const handleFocusPointHover = (
-  arrow: ExcalidrawArrowElement,
-  scenePointerX: number,
-  scenePointerY: number,
-  scene: Scene,
-  appState: AppState,
-): "start" | "end" | null => {
-  const elementsMap = scene.getNonDeletedElementsMap();
-  const pointerPos = pointFrom(scenePointerX, scenePointerY);
-  const hitThreshold = (FOCUS_POINT_SIZE * 1.5) / appState.zoom.value;
-
-  // Check start binding focus point
-  if (arrow.startBinding?.elementId) {
-    const bindableElement = elementsMap.get(arrow.startBinding.elementId);
-    if (
-      bindableElement &&
-      isBindableElement(bindableElement) &&
-      !bindableElement.isDeleted
-    ) {
-      const focusPoint = getGlobalFixedPointForBindableElement(
-        arrow.startBinding.fixedPoint,
-        bindableElement,
-        elementsMap,
-      );
-      if (
-        isFocusPointVisible(
-          focusPoint,
-          arrow,
-          bindableElement,
-          elementsMap,
-          appState,
-          "start",
-        ) &&
-        pointDistance(pointerPos, focusPoint) <= hitThreshold
-      ) {
-        return "start";
-      }
-    }
-  }
-
-  // Check end binding focus point (only if start not already hovered)
-  if (arrow.endBinding?.elementId) {
-    const bindableElement = elementsMap.get(arrow.endBinding.elementId);
-    if (
-      bindableElement &&
-      isBindableElement(bindableElement) &&
-      !bindableElement.isDeleted
-    ) {
-      const focusPoint = getGlobalFixedPointForBindableElement(
-        arrow.endBinding.fixedPoint,
-        bindableElement,
-        elementsMap,
-      );
-      if (
-        isFocusPointVisible(
-          focusPoint,
-          arrow,
-          bindableElement,
-          elementsMap,
-          appState,
-          "end",
-        ) &&
-        pointDistance(pointerPos, focusPoint) <= hitThreshold
-      ) {
-        return "end";
-      }
-    }
-  }
-
-  return null;
-};
@@ -1,45 +0,0 @@
-import type { App } from "@excalidraw/excalidraw/types";
-
-import { LinearElementEditor } from "../linearElementEditor";
-
-import { handleFocusPointDrag } from "./focus";
-
-export const maybeHandleArrowPointlikeDrag = ({
-  app,
-  event,
-}: {
-  app: App;
-  event: KeyboardEvent | React.KeyboardEvent<Element> | PointerEvent;
-}): boolean => {
-  const appState = app.state;
-  if (appState.selectedLinearElement && app.lastPointerMoveCoords) {
-    // Update focus point status if the binding mode is changing
-    if (appState.selectedLinearElement.draggedFocusPointBinding) {
-      handleFocusPointDrag(
-        appState.selectedLinearElement,
-        app.scene.getNonDeletedElementsMap(),
-        app.lastPointerMoveCoords,
-        app.scene,
-        appState,
-        app.getEffectiveGridSize(),
-        event.altKey,
-      );
-      return true;
-    } else if (
-      appState.selectedLinearElement.hoverPointIndex !== null &&
-      app.lastPointerMoveEvent &&
-      appState.selectedLinearElement.initialState.lastClickedPoint >= 0 &&
-      appState.selectedLinearElement.isDragging
-    ) {
-      LinearElementEditor.handlePointDragging(
-        app.lastPointerMoveEvent,
-        app,
-        app.lastPointerMoveCoords.x,
-        app.lastPointerMoveCoords.y,
-        appState.selectedLinearElement,
-      );
-      return true;
-    }
-  }
-  return false;
-};
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
dwelle	e3125b8a98	exclude playwright tests from vitest	2025-04-21 11:50:33 +02:00
dwelle	733e45f3a9	test: visual regression tests POC	2025-04-20 22:13:46 +02:00