[General Discussion] The use of colour. Or how earthtones are next gen.

I don't know if these are moreso a product of the art style, but:

Katamari Damacy - The entire colour scheme was rainbow, rainbow, rainbow! It definitely worked to give the whole game a hyper psychadelic feel and simply would fail to invoke the same drugged-up feel if a less vibrant array of colours were used throughout the world.

Okami - Sepia for celestial brush usage, and black for ink strokes and outlining everything were two significant colours. Colour does play a heavy role as you can see Amaterasu physically drained when she runs out of ink, or when you bash the enemies up enough they show muddy colours. Of course, whenever you restore beauty to a land, everything explodes in a vibrant burst of pink sakura and blue skies, contrasting the black clouds of yami zones, blatantly showcasing the difference in atmosphere and overall mood, as intended.

Jam it back in, in the dark.