     baseLayers =
         Grayscale: grayscale
         Streets: streets
+        Satellite: satellite
 
     L.control.layers(baseLayers, overlays).addTo(map)
 

    mapUrl = "https://api.tiles.mapbox.com/v4/{id}/{z}/{x}/{y}.png?access_token=#{token}"
    grayscale = L.tileLayer mapUrl, id: 'mapbox.light'
    streets = L.tileLayer mapUrl, id: 'mapbox.streets'

    layers = [grayscale]


    colors =
        1: 'red'
        2: 'blue'
        3: 'green'
    colors[id]
