The Color Solid generator creates a single-colored object. You can adjust the color of the solid, as well as keyframe the color to create an animated texture of changing colors.
Note: To create and animate a small, color-filled box or shape, use the Shape tools to draw a vector-based shape rather than creating and masking a Color Solid generator. This is more efficient in terms of processor performance and workflow.
Adjust this generator using a single set of controls in the Generator Inspector:
Color: Color controls that set the color. For more precise color selection, click the disclosure triangle to display Red, Green, and Blue sliders.