[ { "category": "Worldwide", "isOverlay": false, "title": "Esri Imagery", "url": "https://services.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}", "minZoom": 1, "maxZoom": 19, "attributions": "©Esri
" }, { "category": "Esri", "isOverlay": false, "title": "Esri Topo", "url": "http://services.arcgisonline.com/arcgis/rest/services/World_Topo_Map/MapServer/tile/{z}/{y}/{x}", "minZoom": 3, "maxZoom": 19, "attributions": "©Esri
" }, { "category": "Railways", "isOverlay": true, "title": "Railway map", "url": "http://tiles.openrailwaymap.org/standard/{z}/{x}/{y}.png", "minZoom": 3, "maxZoom": 19, "attributions": "Openrailwaymap ©OSM contributors
" }, { "isOverlay": true, "title": "Railway map speeds", "url": "http://tiles.openrailwaymap.org/maxspeed/{z}/{x}/{y}.png" } ]