I hide beneath surfaces, I paint without brushes, I shift without moving. What am I?

Category: Wordplay · Difficulty: expert

Hint: Think about phenomena that alter perception of color invisibly.

Answer

A prism bending white light

Explanation

Prisms split light into colors by bending it without any visible movement or painting tools.

This is a expert wordplay riddle — one of the harder riddles here. The answer is A prism bending white light.

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