Examine source code of Sunsets Horses by MaDonna

{
  "name": "Sunsets Horses by MaDonna",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "SunsetHorsesH1.jpg"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 0.99)",
      "tab_background_text": "rgba(243, 255, 18, 1)",
      "toolbar": "rgba(201, 65, 6, 0)",
      "bookmark_text": "rgba(255, 255, 0, 1)",
      "toolbar_field": "rgba(199, 61, 6, 0.08)",
      "toolbar_field_text": "rgba(255, 255, 0, 1)",
      "tab_line": "rgba(255, 255, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{9027f913-e9c4-4486-9d1b-bce1fb7678bf}"
    }
  }
}