Minor improvement.

examples/canvas_particles_sprites.html

@@ -60,9 +60,8 @@
 				}
 
 				renderer = new THREE.CanvasRenderer();
+				renderer.setClearColor( 0x000040 );
 				renderer.setSize( window.innerWidth, window.innerHeight );
-				renderer.sortElements = false;
-				renderer.setClearColor( 0x0000ff, 0.25 );
 				container.appendChild( renderer.domElement );
 
 				stats = new Stats();