Examine source code of Digital Sky

{
  "theme": {
    "images": {
      "theme_frame": "DigitalCloudsH.jpg"
    },
    "colors": {
      "frame": "#000099",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Digital Sky",
  "manifest_version": 2,
  "description": "abstract, blue, clouds, digital, lines, sky, squares, lavender, pixels, \n\nDesigned by MaDonna\n\nMy wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/002fa0a2158cd69d74920142c1f789a3ca917220df4a1a53fed1acacf659770a/http%3A//abstract.desktopnexus.com/wallpaper/942358/\" rel=\"nofollow\">http://abstract.desktopnexus.com/wallpaper/942358/</a>"
}