Examine source code of Black and White

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#aeaeae",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Black  and  White",
  "manifest_version": 2,
  "description": "Designed by MaDonna\n\nMy wallpaper to match is at: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/6cc1169bf1717ddf97c3f7343875e8e0e9235a3d2587fddc23cb4dcf6e57f528/http%3A//nature.desktopnexus.com/wallpaper/1686625/\">http://nature.desktopnexus.com/wallpaper/1686625/</a>"
}