Examine source code of Hohenschwangau Castle

{
  "theme": {
    "images": {
      "theme_frame": "HohenschwangauHeader.jpg"
    },
    "colors": {
      "frame": "#517831",
      "tab_background_text": "#3b2603"
    }
  },
  "version": "2.0",
  "name": "Hohenschwangau Castle",
  "manifest_version": 2,
  "description": "Hohenschwangau is a famous Castle in Bavaria next to Neuschwanstein Castle."
}