Examine source code of Night Scares by MaDonna

{
  "theme": {
    "images": {
      "theme_frame": "scarynight.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Night Scares by MaDonna",
  "manifest_version": 2,
  "description": "Designed by MaDonna\n\nMy wallpaper to match is at: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/ce4a57e8f04132741f62547687b7028a52b92f345fc8244d5cd4aeec249a8c1f/http%3A//nature.desktopnexus.com/wallpaper/1196780/\">http://nature.desktopnexus.com/wallpaper/1196780/</a>"
}