I'm not overly concerned with color count, but this originally didn't have any form of the dynamic shading.  Someone on a different site showed me an example and I thought it vastly improved how it looked, so I kept it. I could probably reuse a shade of red or two, but that'd only save a little bit.

Thanks, though!

Animation looks smooth, I wonder if you could reuse some of the colors? I definitely thought you had used much less than 18.