Examine source code of African King

{
  "theme": {
    "images": {
      "theme_frame": "AfricanKingH.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "African King",
  "manifest_version": 2,
  "description": "Africa, beast, king, lion, male, sky, sunset, trees, wild, dangerous, My wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/0c74a74ede33193f414bd29f5b0614a775bd881fde85c4c790d385f1ce50e3d8/http%3A//animals.desktopnexus.com/wallpaper/920913/\" rel=\"nofollow\">http://animals.desktopnexus.com/wallpaper/920913/</a>"
}