What does the principle of 'solid drawing' emphasize in animation?

The principle of 'solid drawing' in animation emphasizes the importance of creating characters and objects that have believable three-dimensional forms, realistic proportions, and proper dimensions. This principle encourages animators to think of their creations as physical entities that occupy space and interact with gravity and perspective. By ensuring that characters are designed with weight, volume, and balance, animators can convey a sense of realism and depth in their animated works.

This principle helps in making animated figures feel more tangible and relatable to the audience. When animators apply solid drawing, they can create more compelling movements and expressions that resonate with viewers, allowing characters to come to life in a more believable way.

Considering the other options, while clear outlines enhance visibility and simple shapes can simplify design, they do not address the core aspect of depicting three-dimensionality and realism in a character or object's design. Similarly, while color schemes are important for overall aesthetics, they do not contribute to the principle of solid drawing, which fundamentally deals with form and structure rather than color or outline alone.