i don't think i've ever seen this documented anywhere, so here goes:
Myst was built with Apple Hypercard, using a ton of third-party extensions to pull off an extremely atmospheric first person experience.
what is less known is that because Myst is a hypercard stack, it is possible to load the game in black & white mode despite color being a stated system requirement. the result are scenes that have been dithered and posterized from 8-bit colour, down to 1-bit. they look almost like a silhouetted photograph of a georges seurat painting, eery and beautiful in their own way.