Examine source code of Pracaba.com

{
  "theme": {
    "images": {
      "theme_frame": "a2.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Pracaba.com",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/ba1e8c72d8cc18940fb3b58b97ce227b1b68360c4556b913da078603ae8e9fe1/http%3A//www.pracaba.com\" rel=\"nofollow\">www.pracaba.com</a>"
}