#108CGA 4-Color

The rolling-hills landscape forced onto an IBM CGA Mode 4 monitor: only black, cyan (#55ffff), magenta (#ff55ff) and white exist. A 4×4 Bayer ordered dither jitters every colour channel before an unrolled nearest-of-four snap, so the blue sky checkerboards into cyan, warm sunsets bleed magenta and midtones read as woven phosphor grids — the gloriously wrong palette of an early-80s PC game.