 Diller's geometry seems more spirited and less redundant than Albers's--more Malevichean.One dark square with various agitated rectangles in it seems to recall Malevich's aerodynamic phase, and one blue square with a white-and-yellow rectangular strip above brings the final puritan, transcendental phase of Supremati to mind.If Diller is more playful than Albers, however, he's more nervous than Malevich.