app/pb_kits/playbook/pb_background/docs/_description

The background kit is used for adding a background to a page or to any container. Instead of adding a custom class to give something a background, you can now wrap the elements in the background kit and use the background_color prop to assign its color. The colors that you can choose from for the background_color prop are: gradient, dark, light, white, status colors, product colors, and category colors.

The custom_color prop allows you to pass a hex value (ex. “#e43718”) in place of background_color. It is not case sensitive, but needs to start with #. This prop exists primarily for use in microsites and very specific situations. Avoid using unless absolutely necessary to maintain continuity.