This actually works fine, we just weren't initializing it to zero, which borked a bunch of assumptions of course.

It's causing USB problems (reading the string descriptors) and it doesn't help now that I've determined that executing from RAM doesn't significantly speed up the updatePixel loop.

Otherwise, some call sites will certainly forget this...

Originally I wasn't planning on doing this, but since I need to reclaim some RAM anyway, might as well just start hacking out everything we don't need...

Make room for Open Pixel Control tools