Examine source code of Wings of Magic

{
  "name": "Wings of Magic",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Wings of Magic.png"
    },
    "colors": {
      "frame": "rgba(54, 53, 119, 1)",
      "tab_background_text": "rgba(225, 248, 250, 1)",
      "toolbar": "rgba(56, 53, 120, 0)",
      "bookmark_text": "rgba(117, 227, 235, 1)",
      "toolbar_field": "rgba(56, 53, 120, 0.62)",
      "toolbar_field_text": "rgba(229, 187, 240, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e5b54667-6435-4ad7-a180-834229aee1f7}"
    }
  }
}