Examine source code of Beautiful Winter Night

{
  "theme": {
    "images": {
      "theme_frame": "BeautifulWinterNightH2.jpg"
    },
    "colors": {
      "frame": "#000033",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Beautiful Winter Night",
  "manifest_version": 2,
  "description": "winter, sky, trees, snow, stars, moon, mountains, Christmas, cold, \n\nDesigned by MaDonna\n\nMy wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/675c7a19aa4ad0d796c2fab69a4e643814e1ff455e55fa4e489a27e71aebba4f/http%3A//nature.desktopnexus.com/wallpaper/877204/\" rel=\"nofollow\">http://nature.desktopnexus.com/wallpaper/877204/</a>"
}