Examine source code of Efeu Harz Re

{
  "theme": {
    "images": {
      "theme_frame": "p4a.jpg"
    },
    "colors": {
      "frame": "#666666",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Efeu Harz Re",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/c99f57180d9f50690d348236f3e26231b57dcbd250a3907f50bab1afe10d6cc7/http%3A//www.hanamau.de\" rel=\"nofollow\">www.hanamau.de</a>"
}