Dimensionality

Many elements in the interface template use perspective, highlighting, and shading to provide a three-dimensional appearance. This emphasizes function and provides real-world feedback to the user’s actions. Be careful not to overdo the use of dimensionality when designing your own visual elements. Avoid unnecessary nesting of visual elements and the use of three-dimensional effects for an element that is not interactive. Introduce only enough detail to provide useful visual cues, and use designs that blend well with the interface.