ColorBox was added to design resources

resources/design.json

@@ -223,6 +223,12 @@
       "desc": "colourco.de is an online designer tool, which allows you to easily and intuitively combine colours.",
       "url": "https://colourco.de",
       "tags": ["color", "palette"]
+    },
+    {
+      "title": "ColorBox by Lyft Design",
+      "desc": "Colorbox is a color tool to produce color sets.",
+      "url": "https://www.colorbox.io",
+      "tags": ["color", "palette"]
     }
   ]
 }