var Gmaps_DarkTheme = [
            {
              featureType: "all",
              elementType: "all",
              stylers: [
                { invert_lightness: true }
              ]
            },{
              featureType: "administrative",
              elementType: "labels",
              stylers: [
                { visibility: "off" }
              ]
            },{
              featureType: "landscape",
              elementType: "all",
              stylers: [
                { visibility: "off" }
              ]
            },{
              featureType: "poi",
              elementType: "all",
              stylers: [
                { visibility: "off" }
              ]
            },{
              featureType: "road",
              elementType: "all",
              stylers: [
                //{ visibility: "off" }
              ]
            },{
              featureType: "transit",
              elementType: "all",
              stylers: [
                { visibility: "off" }
              ]
            },{
              featureType: "water",
              elementType: "labels",
              stylers: [
                { visibility: "off" }
              ]
            },{
              featureType: "water",
              elementType: "geometry",
              stylers: [
                { lightness: 50 }
              ]
            }
          ]