A theory of artArt refers to a diverse range of human intellectual and expressive activities and the outcomes of those activities. Within this context art is further defined as visual art and includes painting, drawing, sculpture, printmaking, photography and work made using digital media. is intended to contrast with a definition of art. Traditionally, definitions are composed of necessary and sufficient conditions and a single counterexample overthrows such a definition. Theorising about art, on the other hand, is analogousIn a colour wheel, colours which are next to each other, such as red and orange; it is the opposite of complementary. to a theory of a natural phenomenon like gravity