Two dither patterns, each progressing from one color to its complement. With every frame, the machine approximates a color part way between the two, representing it in just the two-color palette. Because complementary colors are used, they never visually recombine, leaving the dithering patterns, ordinarily hidden, in plain sight. The first progression uses the Atkinson algorithm, the second uses Shiau-Fan 2. More info at http://danieltemkin.com/DitherStudies/About