Immediately a large square, marked out in shimmering lines, appeared on the floor.
Three special squares also appeared throughout the course of the show.
A square appeared on one side of the image, with a dotted line between the light source and the graph.
When she found her target a red square appeared on the area.
Far away a square of light appeared, grew quickly larger.
Its black squares appear to come off the floor adding a depth of perspective.
A square of silvered glass appeared in his hand and he held it toward her.
A square of dim illumination appeared on the far wall.
A white square of linen appeared just when she needed it.
Suddenly a patch of green sky was pulled back, and a dark square appeared in the ceiling.