Which component is specifically known for its aesthetic function in the design of the casket?

The overlay is specifically known for its aesthetic function in casket design. It serves as a decorative covering that enhances the overall appearance of the casket. Typically made from materials such as satin, velvet, or other fabrics, the overlay can add elements of luxury and visual appeal. Its design can significantly influence the emotional tone and presentation of the casket, as it often features patterns, colors, and textures that can express personal or cultural significance.

In contrast, the casket cap refers to the top portion of the casket and includes components that may serve functional as well as aesthetic roles, but it is not solely focused on aesthetics. The body ledge is part of the internal framework of the casket and is not intended for external decoration. The design rim, while it can contribute to the look of the casket, typically serves to enclose or support various decorative aspects rather than being a standalone aesthetic feature. Thus, the overlay stands out as the specific component dedicated to enhancing the visual beauty of the casket.