Examine source code of Farm Country by MaDonna

{
  "name": "Farm Country by MaDonna",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "FarmCountryH2.jpg"
    },
    "colors": {
      "frame": "rgba(111, 177, 247, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(113, 175, 250, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(204, 168, 114, 0.09)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{19aec560-9752-4be7-9ace-48fe0158d177}"
    }
  }
}