Been waiting for this lol. You're on this CRT Filter kick for your games right now We are LOVING IT
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One of the good things with code is that once you've made it, you can reuse it everywhere! I'd definitely be down with making this CRT filter my "style" (I mean, I've already used it in like 5 games at this point...), it goes a long way for making retro pixelart with big chunks of the same color more visually interesting.