Examine source code of Fall Flight by M♥Donna

{
  "name": "Fall Flight",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Fall Flight.jpg"
    },
    "colors": {
      "frame": "rgba(114, 3, 4, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(117, 2, 2, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(117, 2, 2, 0.11)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d815edf8-9e66-4033-abf1-e827a5aadc3c}"
    }
  }
}