{
  "OSM": "https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png",
  "OSM Germany": "https://{s}.tile.openstreetmap.de/{z}/{x}/{y}.png",
  "OpenTopoMap Outdoors": "https://{s}.tile.opentopomap.org/{z}/{x}/{y}.png",
  "Carto Positron": "https://{s}.basemaps.cartocdn.com/light_all/{z}/{x}/{y}.png",
  "Carto Dark Matter": "https://{s}.basemaps.cartocdn.com/dark_all/{z}/{x}/{y}.png",
  "Esri World Imagery Satellite": "https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}",
  "Google Satellite": "https://mt1.google.com/vt/lyrs=s&x={x}&y={y}&z={z}"
}