Examine source code of Metropolitan Roleplay

{
  "theme": {
    "images": {
      "theme_frame": "saq.png"
    },
    "colors": {
      "frame": "#5d0201",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Metropolitan Roleplay",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/d30917c3c9f4b99e79461e8779aa2caa02a192f3603e4e692108225071528bda/http%3A//www.metro-rp.com\" rel=\"nofollow\">www.metro-rp.com</a> style"
}