Examine source code of hummerforum.de

{
  "theme": {
    "images": {
      "theme_frame": "persona5.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "hummerforum.de",
  "manifest_version": 2,
  "description": "This persona is created for the German <a href=\"https://outgoing.prod.mozaws.net/v1/158cb3df9a87186c3f1c5efcf7a45afaaeca0068e40ac9eccb7c4b362f6b7a97/http%3A//hummerforum.de\" rel=\"nofollow\">hummerforum.de</a> community."
}