Examine source code of AV-IT.com

{
  "theme": {
    "images": {
      "theme_frame": "top.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "AV-IT.com",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/2d89a7e19b03bff433f6ed0b0dc59b868c735adfe5971387690a065f44d39b3c/http%3A//www.av-it.com\" rel=\"nofollow\">http://www.av-it.com</a>"
}