Examine source code of Audiopalace.de

{
  "theme": {
    "images": {
      "theme_frame": "Persona_Header_audiopalace.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Audiopalace.de",
  "manifest_version": 2,
  "description": "My Persona Work for <a href=\"https://outgoing.prod.mozaws.net/v1/6e03814a5b2e6a086372edaf6ca754dbc12e3e0048d396385e9b563628215317/http%3A//AudioPalace.de\" rel=\"nofollow\">AudioPalace.de</a>"
}