One of my classic memories: KoalaPainter (aka Micro Illustrator) and the KoalaPad
plus4 (called micro illustrator, apparently microillustrator was considered as built-in software instead of the 3+1 package)
./mame64 plus4 -quik ./micro_illustrator.prg
Tandy sold a version of Micro Illustrator for the Tandy 1000.
there's also a version of microillustrator for the coco, but I couldn't get that to run. (disks don't seem to be working)
couldn't find the PC version called PC design...