.5928123762763, 103.0078125),
				new LatLng(-1.3292264529974207, 103.3154296875)
			]);
			map.addLayer(eye1).addLayer(eye2).addLayer(nose).addLayer(mouth);
			const featureGroup = new FeatureGroup([eye1, eye2, nose, mouth]);

			map.addLayer(geojson);
			map.addLayer(featureGroup);

			const geojsonLayerBoundsBtn = document.getElementById('geojsonLayerBounds');
			const featureGroupBoundsBtn = document.getElementById('featureGroupBounds');

			geojsonLayerBoundsBtn.addEventListener('click', geojsonLayerBo