False paint finishes or faux finish
The art of the faux finish is to paint one surface to make it appear something else. The word faux comes from the french and translates as false. In Victorian England cheap pine doors were grained to make them look as if made of oak or some other expensive wood. Similarly walls were painted to appear as if made of marble and other stone finishes. False paneling is also a common way of using trompe l’œil woods to change the ambience of a room.
These techniques are sometimes refered to as broken colour
Working in London in the 1980s saw a “reverse snobbery” taking place where the painted finishes were more expensive than the actual item. They became a social status and spawned many TV shows on how to paint faux finishes. Suddenly everyone was an expert!
See more faux finishing and broken colour work here