Examine source code of Facepunch custom

{
  "theme": {
    "images": {
      "theme_frame": "FPPersona.png"
    },
    "colors": {
      "frame": "#ff0000",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Facepunch custom",
  "manifest_version": 2,
  "description": "A persona styled to look like the website <a href=\"https://outgoing.prod.mozaws.net/v1/2d22eebf3d25ac90c8a6ba2c346eb0e4ab067abdb8524db68140b28a7cb2c1e1/http%3A//www.FacePunch.com\" rel=\"nofollow\">www.FacePunch.com</a>"
}