Inverse colours are seen through its breath.

Reverse is a mid-sized postcreated creature, full white except its eyesocketless skull head is black. It is basically "just a creature" without greater intelligence. It cannot talk, though it likes to clack its beak-like mouth and can keep some sounds like creaking and hissing. Mostly Reverse tends to be pretty skittish and tends to avoid any encounters with other creatures it doesn't yet know. It likes to hang out with its own kind, though, and within its own rank, like Sympathy. It's afraid of postcreateds with much higher power like ones named the sins.
Its only special skill is to breath a stream of energy which makes its target to see everything in inverted colors a few days. That only works on beings with biological eyes.
Overall Reverse could be described as odd but pretty harmless, like oversized stray cat.

¤ Liner and color pencils. 2010.