Examine source code of Amber Autumn by MaDonna

{
  "name": "Amber Autumn by MaDonna",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "AmberAutumnH.jpg"
    },
    "colors": {
      "frame": "rgba(214, 157, 114, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(214, 156, 112, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(214, 156, 112, 0.09)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(163, 76, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ffa48a60-3c71-4358-8b83-e7489ff9308a}"
    }
  }
}