Examine source code of Fresh and Clean

{
  "theme": {
    "images": {
      "theme_frame": "FreshandCleanH.jpg"
    },
    "colors": {
      "frame": "#b6cf73",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Fresh and Clean",
  "manifest_version": 2,
  "description": "Designed by MaDonna\n\nMy wallpaper to match is at: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/edae74080f90ee29a5748541fa17615109bbbb2f1faec7f7815f476566cfbb4e/http%3A//nature.desktopnexus.com/wallpaper/1089634/\">http://nature.desktopnexus.com/wallpaper/1089634/</a>"
}