Final answer:
To fill a shape with solid color, one should apply a color fill, which is a uniform application of color within the boundaries of a shape, commonly used in Color-Field Painting to create a flat picture plane.
Step-by-step explanation:
If you want to fill a shape with solid color, you should apply a color fill to it. A shape is an element of art that is two-dimensional, having height and width, and is defined by its boundaries. These boundaries might be defined by lines or changes in color. When an entire shape is covered with one solid color without any gradation or texture, it is referred to as a color fill.
In the context of painting, such as Color-Field Painting, artists utilize large fields of solid color to create a uniform area within a shape, which is essential to achieve a flat picture plane. By staining or spreading paint across the canvas, they create areas of unbroken color. This method establishes an even and continuous surface, emphasizing the purity of the color itself.