Examine source code of Time For Love by MaDonna

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#d8dad7",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Time For Love 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/f9c1d6d334ba70bba733f7f0e96c4cd6a9a89b75bc086462a5605803146e28f0/http%3A//nature.desktopnexus.com/wallpaper/1683279/\">http://nature.desktopnexus.com/wallpaper/1683279/</a>"
}