Chiaroscuro is Italian for<em> light and shadow</em>
Painters use this technique when they need to <u>create the illusion of light</u> on objects and people
I've attached a pic for example :D
Answer:
Multicolred art would be a mosaic.
1.The power of apparently influencing the course of events by using mysterious or supernatural forces.
2.Used in magic or working by magic; having or apparently having supernatural powers.
3.Move, change, or create by or as if by magic.\
It all depends on what context.