Examine source code of DataVizPalette

{
  "name": "Colors",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Untitled-2.png"
    },
    "colors": {
      "frame": "rgba(0, 63, 92, 1)",
      "tab_background_text": "rgba(221, 81, 130, 1)",
      "toolbar": "rgba(68, 78, 134, 1)",
      "bookmark_text": "rgba(255, 110, 84, 1)",
      "toolbar_field": "rgba(149, 81, 150, 1)",
      "toolbar_field_text": "rgba(255, 166, 0, 1)"
    }
  }
}