Examine source code of Elizabeth Báthory

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Elizabeth Báthory",
  "manifest_version": 2,
  "description": "Theme and artwork © 2018 Thierry L. Gachet (Ryô). <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/d53c0f6a96ba962573a14474535f62a19ecc7de3b8045df8c3679695efaf92dd/http%3A//RYO.CH\">RYO.CH</a>"
}