The cube displays a gradation effect formed by glazed ceramic tiles. Every corner has the same shade of ceramic tile on all the three faces it connects, and at every edge, the two adjacent faces start ...

Moffit and Brown do a great job of explaining the phenomenon using a color cube: The two middle squares on this color cube appear to be different colors. The top one looks brown and the bottom one ...

His use of bold composition, strong tonal contrasts, and vibrant color, which he credits to discovering Pierre Bonnard's use ...