@maple Yeah contrast feels like a potential problem here and definitely something I should factor into my color choices. I like the colorful outline thing but it seems tricky to combine with shading.
I care a lot about how my art looks on a CRT (and I tested Nova the Squirrel on a real NES and CRT frequently) but don't have a way to quickly check for non-NES stuff right now, so that would actually help if you could look.