fix(color): improve precision in conversions and add tests#217

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vlakoff wants to merge 7 commits intoBacon:mainfrom

vlakoff:fix/color-conversion

Commits on Nov 25, 2025

fix(color): avoid division by zero when converting rgb(0,0,0) to cmyk
vlakoff
committed
refactor(color): simplify CMYK to RGB conversion using standard formula
vlakoff
committed
fix(color): use the correct luminance coefficients to rgb to gray conversion
vlakoff
committed