Examine source code of Cats and Mice by MaDonna

{
  "theme": {
    "images": {
      "theme_frame": "CatsandMiceH.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Cats and Mice by MaDonna",
  "manifest_version": 2,
  "description": "My wallpaper to match is at: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/13312aa60abca7878584fac620a8dc88f981b946d9317a953136acf4922ba1d2/http%3A//animals.desktopnexus.com/wallpaper/1289881/\">http://animals.desktopnexus.com/wallpaper/1289881/</a>"
}