Examine source code of Sunset Snow

{
  "theme": {
    "images": {
      "theme_frame": "SunsetSnowH.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Sunset Snow",
  "manifest_version": 2,
  "description": "sky, winter, sun, night, snow, tree, snowing, bright, Christmas, ice, cold, bright, light, bow, limb, \n\nDesigned by MaDonna\n\n My wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/a33c1fb83227585266d8fb1c896831bc8b944ab6711e234c081fe979d2492b4c/http%3A//nature.desktopnexus.com/wallpaper/907488/\" rel=\"nofollow\">http://nature.desktopnexus.com/wallpaper/907488/</a>"
}