Examine source code of Forever Spring

{
  "theme": {
    "images": {
      "theme_frame": "ForeverSpringH.jpg"
    },
    "colors": {
      "frame": "#f09898",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Forever  Spring",
  "manifest_version": 2,
  "description": "abstract, bright, flowers, ribbons, spring, summer My wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/d0296585982640fb8e1c22b562685052dd0a593ae336720b0bb5f82edf9ad070/http%3A//nature.desktopnexus.com/wallpaper/1018971/\" rel=\"nofollow\">http://nature.desktopnexus.com/wallpaper/1018971/</a>\n\nDesigned by MaDonna"
}