Examine source code of Red Barn by MaDonna

{
  "name": "Red Barn by MaDonna",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "RedBarnDoorH.jpg"
    },
    "colors": {
      "frame": "rgba(184, 63, 87, 1)",
      "tab_background_text": "rgba(237, 237, 237, 1)",
      "toolbar": "rgba(186, 63, 84, 0)",
      "bookmark_text": "rgba(237, 237, 237, 1)",
      "toolbar_field": "rgba(186, 63, 84, 0.07)",
      "toolbar_field_text": "rgba(224, 224, 224, 1)",
      "tab_line": "rgba(224, 224, 224, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{744109c9-6b91-460d-bbeb-906fc1c6561b}"
    }
  }
}