I spotted these little colour screens (https://www.aliexpress.com/item/1005007804650049.html?spm=a2g0o.productlist.main.1.47bc29289jRNlv) on AliExpress and thought they looked suspiciously similar to the mono screen in the original Thumby. So I ordered a few...
Wow, this looks awesome.
Is the colored Doom source code available somewhere?
Oh, it was on your github already :-)
https://github.com/AncientJames/rp2040-doom