Google map API v.3

see alsohttps://developers.google.com/maps/documentation/javascript/styling?utm_source=welovemapsdevelopers

<!DOCTYPE html>
<html>
  <head>
    <title>Simple styled maps</title>
    <style>
      html, body, #map-canvas {
        height: 100%;
        margin: 0px;
        padding: 0px
      }
    </style>
    <script src="https://maps.googleapis.com/maps/api/js?v=3.exp&signed_in=true"></script>
    <script>
var map;
var brooklyn = new google.maps.LatLng(5,<!DOCTYPE html>
<html>
  <head>
    <title>Simple styled maps</title>
    <style>
      html, body, #map-canvas {
        height: 100%;
        margin: 0px;
        padding: 0px
      }
    </style>
    <script src="https://maps.googleapis.com/maps/api/js?v=3.exp&signed_in=true"></script>
    <script>
var map;
var brooklyn = new google.maps.LatLng(45, 5);

var MY_MAPTYPE_ID = 'custom_style';

function initialize() {

var featureOpts = [
    {
      stylers: [
        { hue: '#336699' },
        { visibility: 'simplified' },
        { gamma: 0.5 },
        { weight: 0.5 }
      ]
    },
    {
      elementType: 'labels',
      stylers: [
        { visibility: 'off' }
      ]
    },
    {
      featureType: 'water',
      stylers: [
        { color: '#336699' }
      ]
    }
  ];

var mapOptions = {
    zoom: 12,
    center: brooklyn,
    mapTypeControlOptions: {
      mapTypeIds: [google.maps.MapTypeId.ROADMAP, MY_MAPTYPE_ID]
    },
    mapTypeId: MY_MAPTYPE_ID
  };

map = new google.maps.Map(document.getElementById('map-canvas'),
      mapOptions);

var styledMapOptions = {
    name: 'Custom Style'
  };

var customMapType = new google.maps.StyledMapType(featureOpts, styledMapOptions);

map.mapTypes.set(MY_MAPTYPE_ID, customMapType);
}

google.maps.event.addDomListener(window, 'load', initialize);

</script>
  </head>
  <body>
    <div id="map-canvas"></div>
  </body>
</html>

https://maps.googleapis.com/maps/api/js?v=3.exp&signed_in=true