I’ve recommended Smokey Hill Designs in the past as another materials option for people. They have some lovely unfinished plywoods and great customer service. They’ve since added printed MDF and acrylic called PatternPly that comes in all sorts of fun patterns. But they have just announced PatternPly MDF in hundreds of solid Pantone colors. [This link is for box assortments, but you can also order 1/4" and 1/8" by specific color.]
No painting required.