Examine source code of Tulip Tree

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#e2e9eb",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Tulip  Tree",
  "manifest_version": 2,
  "description": "Designed by MaDonna\n\nMy wallpaper to match is at: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/e344310aad451669f95112e39763d9f0b7d20e25c7a1d554c84c077228a8fa96/http%3A//nature.desktopnexus.com/wallpaper/1683308/\">http://nature.desktopnexus.com/wallpaper/1683308/</a>"
}