Examine source code of SchwarzesForum.de

{
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      "theme_frame": "kopfteil.jpg"
    },
    "colors": {
      "frame": "#d92525",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "SchwarzesForum.de",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/b5e7888ff601b3d3058581fa981a4de75816e42c2b1339e5da32a3edec721c2a/http%3A//www.schwarzesforum.de\" rel=\"nofollow\">http://www.schwarzesforum.de</a>"
}