Examine source code of Brilliant Autumn

{
  "theme": {
    "images": {
      "theme_frame": "Brilliant-Autumn-Header.jpg"
    },
    "colors": {
      "frame": "#7fcdfa",
      "tab_background_text": "#f7f2d4"
    }
  },
  "version": "2.0",
  "name": "Brilliant Autumn",
  "manifest_version": 2,
  "description": "Matching Desktop Wallpaper!  Get the wallpaper here:  <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/0ac7d4494e890d611dc4205849d57da25fe5cb9f93d03c24f8b181a5eba00af1/http%3A//www.forestwander.com/2009/02/blackwater-canyon-fall-colors/\">http://www.forestwander.com/2009/02/blackwater-canyon-fall-colors/</a>   Original Photo Courtesy of: Forest Wander - Free Nature Picture Photography.  You may visit their homesite at: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/fc3b8ae4fd43091fc803000dd1b2947afb606fb9b4306f023f910d756288919a/http%3A//www.forestwander.com\">http://www.forestwander.com</a>   Enjoy!"
}