Final answer:
Contour colors in eye shadow are for creating depth, defining the crease, and emphasizing the eye corners, but not for highlighting the brow bone.
Step-by-step explanation:
When using eye shadow, a contour color may be used to define the crease of the eyelid, create depth and dimension, and emphasize the inner corners of the eyes. However, a contour color is not typically used to highlight the brow bone. Highlighting is usually achieved with lighter eyeshadow shades to reflect light and draw attention to the brow bone area, contrasting the contouring purpose which is meant to add shadow and define. Eye shadow comes in a variety of forms, including powder, liquid, pencil, cream, or mousse, and can enhance the eyes in multiple ways by complementing the eye color, making eyes appear larger, or drawing attention to the eyes.