Final answer:
A pattern with squares typically in two colors is referred to as 'checked'. This kind of pattern contributes to the unity and visual interest of a textile or artwork, such as Vasarely's piece based on squares to create a cubic effect.
Step-by-step explanation:
Something with a pattern of squares, usually in two colors, is known as checked. Patterns, in general, enable a piece of art or design to achieve unity and variety. For example, the artwork Vega-gyongly-2 (1971) by Vasarely is based on squares to form cubes, using a simple color palette set against a dark background.
The interplay of color and shape helps to guide the viewer's eye around the painting, delivering a mesmerizing visual experience. Similarly, in textiles or other designed objects, the organization of colors, illustrations, or shapes forms patterns that may repeat or seem irregular, providing unity or contrast to the design.