Examine source code of Ubuntu metalic

{
  "theme": {
    "images": {
      "theme_frame": "metalic-ubuntu-firefox.jpg"
    },
    "colors": {
      "frame": "#202124",
      "tab_background_text": "#e6eaf2"
    }
  },
  "version": "2.0",
  "name": "Ubuntu metalic",
  "manifest_version": 2,
  "description": "este tema es para una versión gtk en la que estoy trabajando, y pronto subiré a opendesktop. que la disfruten..\n\n<a href=\"https://outgoing.prod.mozaws.net/v1/00facaa90431d65137d9aefe2f62599b1bc4ba0f2ad749da95ed1d419fe19cd9/http%3A//opendesktop.org/usermanager/search.php%3Fusername=InvazorX&amp;action=contents\" rel=\"nofollow\">http://opendesktop.org/usermanager/search.php?username=InvazorX&amp;action=contents</a>"
}