Divisionism

Divisionism often gets miscast as an art movement, but it’s not a movement, it’s a style. First developed by Georges Seurat around 1884 under the name chromoluminarism, the style involved a pseudoscientific theory that letting the viewer’s eye combine many small dots of colors into a final image (as opposed to blending the paints) artwork could achieve a higher level of luminosity. The technique of painting with small dots became called Pointillism, which long outlived its divisionist origin.