Examine source code of Furret

{
  "theme": {
    "images": {
      "theme_frame": "Furretheader.png"
    },
    "colors": {
      "frame": "#ffe74a",
      "tab_background_text": "#ffda82"
    }
  },
  "version": "2.0",
  "name": "Furret",
  "manifest_version": 2,
  "description": "Furret from Pokemon. Full view: <a href=\"https://outgoing.prod.mozaws.net/v1/4427fdaf89578b7585ea9d23f6e5df80a810746ae4f56086c64b629f6903f0a6/http%3A//img525.imageshack.us/img525/3818/furretheader.png\" rel=\"nofollow\">http://img525.imageshack.us/img525/3818/furretheader.png</a>"
}