What does "gradation" imply in design?

Gradation in design refers to a gradual transition in size, color, or texture that creates depth and visual interest. This technique enables designers to develop a sense of flow and connection between different elements in a composition. For instance, when colors transition slowly from one hue to another, it can create a soothing aesthetic. Similarly, when shapes or sizes change progressively, it can guide the viewer's eye through the design, enhancing its overall impact and harmony.

The other options do not capture the essence of gradation. Although contrasts of light and dark colors create visual dynamics, they represent more of a dichotomy than a gradual shift. A rapid change in pattern suggests abruptness rather than the smooth transition inherent in gradation. Maintaining unity focuses on keeping elements consistent, which is a different concept altogether. Gradation emphasizes the subtlety of progression rather than uniformity or stark contrasts, making it a fundamental aspect of design that adds complexity and richness to visual presentations.