Examine source code of PCBrain Metal

{
  "theme": {
    "images": {
      "theme_frame": "personas-pcbrain5.png"
    },
    "colors": {
      "frame": "#d1d1d1",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "PCBrain Metal",
  "manifest_version": 2,
  "description": "Versione Metallica per <a href=\"https://outgoing.prod.mozaws.net/v1/112c791e08dccce1d45c7b5d9e91da05e5675fcaef29323d069e4d329d38413d/http%3A//PcBrain.it\" rel=\"nofollow\">PcBrain.it</a>"
}