lowercase names

examples/webgl_postprocessing_nodes.html

@@ -108,13 +108,13 @@
 				gui = new dat.GUI();
 
 				var example = gui.add( param, 'example', {
-					'basic / Brightness': 'brightness',
-					'basic / Blends': 'blends',
-					'basic / Fade': 'fade',
-					'basic / Invert': 'invert',
-					'adv / Saturation': 'saturation',
-					'adv / Refraction': 'refraction',
-					'adv / Mosaic': 'mosaic',
+					'basic / brightness': 'brightness',
+					'basic / blends': 'blends',
+					'basic / fade': 'fade',
+					'basic / invert': 'invert',
+					'adv / saturation': 'saturation',
+					'adv / refraction': 'refraction',
+					'adv / mosaic': 'mosaic'
 				} ).onFinishChange( function() {
 
 					updateMaterial();