Examine source code of Serenity Farm

{
  "theme": {
    "images": {
      "theme_frame": "SereneFarmH1copyCustom.jpg"
    },
    "colors": {
      "frame": "#dce4f7",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Serenity Farm",
  "manifest_version": 2,
  "description": "Designed by MaDonna\n\n My matching wallpaper can be found at: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/6a2b2fd22e1db36a603885ee2a0e3bc3f7a464ab1af4cee521e2dda189a9c700/http%3A//nature.desktopnexus.com/wallpaper/696998/\">http://nature.desktopnexus.com/wallpaper/696998/</a>"
}