Examine source code of GuerillaCross.com

{
  "theme": {
    "images": {
      "theme_frame": "gc22.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "GuerillaCross.com",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/12e2d2e38bb8540d7a719bb38cb55453ad9ad41de802c105541836fe09816e30/http%3A//GuerillaCross.com\" rel=\"nofollow\">GuerillaCross.com</a>"
}