I remember I had a way but it was really time consuming and difficult. Unfortunately I lost all my bitsy stuff when my hard drive failed.
a little engine for little games, worlds, and stories 路 By
Hi Corvidae,
Have you tried bitsy color? It鈥檚 bitsy but you can add more colours in each palette.
https://aurysystem.itch.io/multicolorbisty
Hope is what you were looking for! 馃寛