https://vkitcompany.com/assets/js/custom-map.js

1(function ($) {
2	"use strict";
3    
4    /*----------------------------
5    START - Google Map Active
6    ------------------------------ */
7	if ($.fn.gmap3) {
8		var center = [47.772323, -112.214897];
9	    $('.google-map')
10		  .gmap3({
11			center:[41.850033, -87.650052],
12			zoom:15,
13			mapTypeId: "shadeOfGrey", // to select it directly
14			mapTypeControlOptions: {
15			  mapTypeIds: [google.maps.MapTypeId.ROADMAP, "shadeOfGrey"]
16			}
17		  })
18		  .styledmaptype(
19			"shadeOfGrey",
20			[
21			  {"featureType":"all","elementType":"labels.text.fill","stylers":[{"saturation":36},{"color":"#000000"},{"lightness":40}]},
22			  {"featureType":"all","elementType":"labels.text.stroke","stylers":[{"visibility":"on"},{"color":"#000000"},{"lightness":16}]},
23			  {"featureType":"all","elementType":"labels.icon","stylers":[{"visibility":"off"}]},
24			  {"featureType":"administrative","elementType":"geometry.fill","stylers":[{"color":"#000000"},{"lightness":20}]},
25			  {"featureType":"administrative","elementType":"geometry.stroke","stylers":[{"color":"#000000"},{"lightness":17},{"weight":1.2}]},
26			  {"featureType":"landscape","elementType":"geometry","stylers":[{"color":"#000000"},{"lightness":20}]},
27			  {"featureType":"poi","elementType":"geometry","stylers":[{"color":"#000000"},{"lightness":21}]},
28			  {"featureType":"road.highway","elementType":"geometry.fill","stylers":[{"color":"#000000"},{"lightness":17}]},
29			  {"featureType":"road.highway","elementType":"geometry.stroke","stylers":[{"color":"#000000"},{"lightness":29},{"weight":0.2}]},
30			  {"featureType":"road.arterial","elementType":"geometry","stylers":[{"color":"#000000"},{"lightness":18}]},
31			  {"featureType":"road.local","elementType":"geometry","stylers":[{"color":"#000000"},{"lightness":16}]},
32			  {"featureType":"transit","elementType":"geometry","stylers":[{"color":"#000000"},{"lightness":19}]},
33			  {"featureType":"water","elementType":"geometry","stylers":[{"color":"#000000"},{"lightness":17}]}
34			]
35		);
36	}
37
38}(jQuery));