Screenshot

Port of krom (Peter Lemon)'s HiColor3840 (PeterLemon/SNES, PPU/Blend/HiColor/HiColor3840). The image's green+blue channels live on BG1 (Mode 3, 240 colors at CGRAM 16-255); the red channel lives on BG2 (16-level 4bpp ramp at CGRAM 0-15); color math ADDs them per pixel — 240 × 16 = "3840 colors", static, no HDMA, no IRQ. Original trefoil-wheel art (gen_assets.py, outputs committed).

Measured proof — the corpus's first colormath dogfood: the captured frame is bit-exact (0/57344 pixels differ) against a mathematical model of SNES color addition (min(GB+R, 31) per 5-bit channel) applied to the committed tile+palette data. colorMathSetSource(SUBSCREEN) + SetOp(ADD) + SetHalf(0) + Enable(BG1|BACKDROP) reproduce krom's CGWSEL $02 / CGADSUB $21 exactly.

Modules Used

console, dma, background, colormath