Examine source code of Fresh Spring

{
  "theme": {
    "images": {
      "theme_frame": "FreshSpringH2Custom.jpg"
    },
    "colors": {
      "frame": "#99fd77",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Fresh  Spring",
  "manifest_version": 2,
  "description": "butterfly, fresh, green leaves, new, shine, sparkles, spring, stars, trees My wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/b4057858e20121be23e88bd2b6f1736ed843763153cb49153460225d7ad18d5e/http%3A//nature.desktopnexus.com/wallpaper/1022765/\" rel=\"nofollow\">http://nature.desktopnexus.com/wallpaper/1022765/</a>\n\nDesigned by MaDonna"
}