The color of your skin or exoskeleton changes drastically, assuming a hue or texture that is both unnatural and atypical of your species. Your skin might be a single color, splotched, or patterned in some freakishly unnatural way. Your skin might gain dynamic pigments that change color based on outside stimuli, such as exposure to sunlight.
Modern System Reference Document © 2002, Wizards of the Coast, Inc.; Authors Bill Slavicsek, Jeff Grubb, Rich Redman, Charles Ryan, based on material by Jonathan Tweet, Monte Cook, Skip Williams, Richard Baker,Peter Adkison, Bruce R. Cordell, John Tynes, Andy Collins, and JD Wiker.