Hi there. First of all, thanks for this amazing library. I was trying to do something very similar to pixelrenderer-2. Everything went well but one issue left for me: how to make the particles larger?

I have tried adding
emitter.addInitialize(new Proton.Radius(5));
, which does it in other examples, in createProton(). However that didn't work.

I have been messing with the code for a while but got no luck. Now I wonder if it's possible... Please let me know how to do this. Thanks in advance!