I just implemented WebGL 2, in order to make the images rendered by the WebGL target look exactly like rendered by the native platforms using Direct3D and OpenGL. This worked before (and will be improved in the upcoming update), but with the new post effects feature, it wasn't possible anymore since WebGL 1 doesn't support non-power-of-two render targets. The update to WebGL 2 was worth it:

Looks pretty identical to me, doesn't it?