Examine source code of wildheart

{
  "name": "wildheart",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "72a75924c821ce9f2a35c9292a2acd28.jpg"
    },
    "colors": {
      "frame": "rgba(242, 22, 158, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(28, 1, 23, 1)",
      "bookmark_text": "rgba(237, 104, 217, 1)",
      "toolbar_field": "rgba(255, 0, 179, 1)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(13, 12, 13, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{514d24a9-7927-4cbc-a740-c793cc904c7b}"
    }
  }
}