Quite some years ago someone did a small part of a monkey island (iirc) demake which was done in just a few colors (like 4 colors or less). It was abandoned and I can't remember if a demo was ever released.
As I can't seem to find it at the forums I hope someone does remember this little project so I can find its production thread again.
Could it possibly be this? Herman Toothrot's Monkey Island?
https://www.adventuregamestudio.co.uk/forums/index.php?topic=25233.0
Yes, that's the one!
Thanx!