Let's move from theory to practice. Here are three distinct ways to use the in a production environment.
Native effects often "blur" colors when downsampling. PixDither maintains sharp, integer-perfect pixel edges. pixdither plugin after effects
After Effects has Diffusion dithering in the Posterize effect, but it is slow, limited, and doesn't allow custom color palettes. Standard Add Noise creates random static, not organized Bayer or Atkinson patterns. Let's move from theory to practice