All of us rely on tone (brightness, lightness) to interpret what we see. Visual artists have gone to great lengths in tonal modelling, but macOS Tahoe offers only bleached-out white or blacked-out black.
grisaille
Sophisticated colour artwork alone does not make a comic great, just as the many millions spent on recent movies cannot make them as great as Dreyer’s masterpieces.
The Eclectic Light Company 