Examine source code of Bright Orb by MaDonna

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Bright Orb 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/c41eda153604ee8a8c174d8ce1f8fa54ea1fbfb9df0c8922166606329e64dc10/http%3A//abstract.desktopnexus.com/wallpaper/1573035/\">http://abstract.desktopnexus.com/wallpaper/1573035/</a>"
}