Examine source code of witchdom

{
  "name": "witchdom",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "img.png"
    },
    "colors": {
      "frame": "rgba(20, 20, 20, 1)",
      "tab_background_text": "rgba(110, 110, 110, 1)",
      "toolbar": "rgba(20, 20, 20, 1)",
      "bookmark_text": "rgba(171, 145, 96, 1)",
      "toolbar_field": "rgba(171, 145, 96, 1)",
      "toolbar_field_text": "rgba(20, 20, 20, 1)"
    }
  }
}