Examine source code of Cowboy Stuff by MaDonna

{
  "name": "Cowboy Stuff by MaDonna",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "cowboystuffH2copyCustom.jpg"
    },
    "colors": {
      "frame": "rgba(224, 214, 206, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(224, 213, 204, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(224, 213, 204, 0.04)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{694b8dce-138d-4edb-a83a-1a1f7f79e17d}"
    }
  }
}