Update background color of kmz loader example

examples/webgl_loader_kmz.html

@@ -62,7 +62,7 @@
 			function init() {
 
 				scene = new THREE.Scene();
-				scene.background = new THREE.Color( 0xaaaaaa );
+				scene.background = new THREE.Color( 0x999999 );
 
 				var light = new THREE.DirectionalLight( 0xffffff );
 				light.position.set( 0.5, 1.0, 0.5 ).normalize();