the.com/pointillism

means A painting technique in which small, distinct dots of pure color are applied in patterns to form an image, relying on the viewer's eye to blend them into shades and tones.

from From the French 'pointillisme,' built on 'point' (a dot or point, from Latin 'punctum,' a thing pricked or pierced). The term was coined in the 1880s by French art critics — at first as a jab — to describe the meticulous dotting method of painters like Georges Seurat and Paul Signac, who preferred the loftier label 'divisionism' for their color theory.