Examine source code of FurAffinity

{
  "theme": {
    "images": {
      "theme_frame": "FApersona_head_4.jpg"
    },
    "colors": {
      "frame": "#a8a8a8",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "FurAffinity",
  "manifest_version": 2,
  "description": "Firefox Persona for <a href=\"https://outgoing.prod.mozaws.net/v1/42958aa395d44022c9728181102c141233f107dc136cd25105b068439c5ed7f3/http%3A//www.furaffinity.net\" rel=\"nofollow\">www.furaffinity.net</a> \n\nBy Ariffrazalin\n\n<a href=\"https://outgoing.prod.mozaws.net/v1/2941e92bfb620cef9faf4665600de20c7869b99bd8ef0eb183b2d4cb64c7d0fe/http%3A//www.furaffinity.net/user/ariffrazalin/\" rel=\"nofollow\">http://www.furaffinity.net/user/ariffrazalin/</a>"
}