Hello there folks! Here’s another Sketch I made with React + ThreeJS + custom post-processing shaders. This one uses dithering and cycle through several oldschool patforms specific color palettes (like CGA Mode 4, AppleII, MSX, Commodore VIC-20 and Commodore 64, Gameboy, etc.). I hope that the bloom added to this specific scene won’t hide the dithering shader beauty. I’ll do a few more optimizations to the shader and publish it on GitHub later this week if someone’s interested. I hope you guys enjoy it! 
As usual, my kindest regards!
Marco