Examine source code of Arcade floor

{
  "name": "index copy",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Screen Shot 2018-09-09 at 12.42.28 PM.png"
    },
    "colors": {
      "toolbar": "rgba(194, 11, 11, 1)",
      "toolbar_field": "rgba(11, 47, 189, 1)",
      "toolbar_field_text": "rgba(186, 214, 47, 1)",
      "frame": "rgba(255, 255, 255, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "bookmark_text": "rgba(21, 232, 56, 1)"
    }
  }
}