property Group.BackColorList as Color
Retrieves or sets a value that indicates the background color of the list when the group is active.

TypeDescription
Color A color expression that indicates the background color of the group's list.

The BackColorList property has effect only when the group is expanded. Use the BackColor property to specify the background color for the group's caption. Use the BorderColor property to specify the color of the group's list border. If you have not specified a the background color for the group's list using the BackColorList property, the control's BackColor property automatically is taken.