Examine source code of Witching Green

{
  "theme": {
    "images": {
      "theme_frame": "WitchingGreenH.jpg"
    },
    "colors": {
      "frame": "#0000ce",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Witching Green",
  "manifest_version": 2,
  "description": "Designed by MaDonna\n\nMy wallpaper to match can be found at: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/b1d2a84b7fb439330fe20eb797e01b0ff9d8f532eb47cabcff3eba76d304a6b0/http%3A//abstract.desktopnexus.com/wallpaper/815904/\">http://abstract.desktopnexus.com/wallpaper/815904/</a>"
}