I've been doing a little research on the word chiaroscuro. This word has been following me around and pestering me for a while now. I thought I'd pay attention finally. As I started learning about it and letting it sink in, the tables turned. Now I'm chasing chiaroscuro.
chiaroscuro (kee-ar-uh-SKYOOR-o) noun
The treatment of light and shade in a work of art, especially to give an illusion of depth.
[From Italian, from chiaro (clear, light) + oscuro (obscure, dark).]
An Italian word literally meaning "light dark", used to describe the skillful balance of light and dark in a painting, with strong contrasts to create dramatic effect. The paintings of Caravaggio and Rembrandt are good examples.