a visual representation (of an object or scene or person or abstraction) produced on a surface

chiaroscuro painting or stained glass etc., in shades of grey imitating the effect of relief

The art, science, or act of depicting or projecting shadows.

a style of painting especially associated with the Italian painter Caravaggio and his followers in which most of the figures are engulfed in shadow but some are dramatically illuminated by a beam of light usually from an identifiable source.