Final answer:
The masks by the Fang artists demonstrate principles of design by using a contrast in texture with raffia and carved wood.
Step-by-step explanation:
The statement is True. The masks created by Fang artists do demonstrate principles of design by using a contrast in texture with raffia and carved wood. The use of different materials creates a visual contrast between the smoothness of the wood and the roughness of the raffia, which adds interest and depth to the overall design of the mask.