var map = new Mapsui.Map { Transformation = new MinimalTransformation(), CRS = "EPSG:3857", BackColor = Mapsui.Styles.Color.Gray }; var attribution = new BruTile.Attribution("© OpenStreetMap contributors", "http://www.openstreetmap.org/copyright"); var tileSource = new HttpTileSource(new GlobalSphericalMercator(), "https://cartodb-basemaps-{s}.global.ssl.fastly.net/light_all/{z}/{x}/{y}.png", new[] { "a", "b", "c" }, name: "OpenStreetMap", attribution: attribution); var tileLayer = new TileLayer(tileSource) { Name = "Carto Light" }; map.Layers.Add(tileLayer);