Examine source code of Boiling

{
  "name": "Boiling",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "abstrakt132.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(232, 232, 232, 1)",
      "toolbar": "rgba(122, 27, 15, 0.54)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(117, 21, 0, 0.49)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d34adff6-93a6-4ce6-9291-cf80ef3ca7c5}"
    }
  }
}