Examine source code of The Three Bears

{
  "name": "The Three Bears",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "TheThreeBearsHCustom.jpg"
    },
    "colors": {
      "frame": "rgba(42, 97, 10, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(39, 99, 10, 0)",
      "bookmark_text": "rgba(255, 245, 245, 1)",
      "toolbar_field": "rgba(39, 99, 10, 0.1)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a8e41163-db65-4e8b-a016-016acbc74ee6}"
    }
  }
}