(148,1,2,1)",
                "rgba(92,1,0,1)"
            ]
        },
        data: data
    });
    map.add(overlay)

    setTimeout(() => {
        overlay.setOptionStyle({
            skin: [{
                    "featureType": "land",
                    "elementType": "geometry",
                    "stylers": {
                        "color": "#e7f7fc"
                    }
                },
                {
                    "featureType": "water",
                    "elementType": "all",
   