{
  "mapbox-streets": {
    "type": "vector",
    "url": "mapbox://mapbox.mapbox-streets-v7",
    "title": "Mapbox Streets"
  },
  "openmaptiles": {
    "type": "vector",
    "url": "https://free.tilehosting.com/data/v3.json?key={key}",
    "title": "OpenMapTiles"
  }
}