With the lower example covered, the upper figure is typically seen as green shapes against a red background because of the symmetry.

Their chests and faces had been painted with green geometric shapes.

The four figures (the yellow, red, blue and green shapes) total 32 units of area.

He saw green glowing shapes, moving in the darkness.

Where a ragged shape lay - a red and green shape.

And then, far above him he noticed a small green shape.

Trees made soft, blunt, deep green shapes with their boughs.

On the road a mile to the west he could see a dark green shape moving fast behind a stand of trees.

Suddenly a green and gray-brown shape hurtled at them from the side.

Instead of filling the skull completely, it shared the space with a green, amorphous shape.