chameleon, a type of lizard that changes skin color to match its surroundings; often kept as a pet

to suddenly change facial expression due to anger, displeasure, or bewilderment

A sudden or violent change in the political or social landscape; an upheaval in circumstances

eyeglasses with light-sensitive lenses that change color or darkness based on the intensity of the light; also called [[变色眼镜|變色眼鏡|bian4 se4 yan3 jing4]]

A type of pen that changes color, such as a specialty color-changing art pen or a copying pencil that turns purple when wet.

eyeglasses with lenses that darken or change color automatically when exposed to sunlight or ultraviolet radiation

a gradual transition or blend from one color to another

to change color and alter one's expression, often due to shock or fear; to go pale or lose one's wits due to an external stimulus