To show signs of fight, strong, etc. and so you can spot them out in the distance
Answer:
Seurat believed colors looked stronger when used along with their complementary color. ... But instead of moving the image, he used many dots of pure color. The dots are too small to tell apart from afar. Georges Seurat (1859-1891), The Circus, 1890-91.
Usually they use different shades of one color to make their drawing’s features look artistic and realistic
Una computadora y una lámpara