Examine source code of vice magazin

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#060405"
    }
  },
  "version": "2.0",
  "name": "vice magazin",
  "manifest_version": 2,
  "description": "<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/aa52bd908f8556079978c871307457be38666cab45373e79879283a9405385e8/http%3A//www.vice.com\">www.vice.com</a>"
}