| Type | Description | |||
| Color | A color expression that indicates the group's background color. The last 7 bits in the high significant byte of the color to indicates the identifier of the skin being used. Use the Add method to add new skins to the control. If you need to remove the skin appearance from a part of the control you need to reset the last 7 bits in the high significant byte of the color being applied to the background's part. |
Use the BackColorGroup property to specify the background color for all groups. Use the BackColorGroup2 property to specify the second background color when drawing the caption of group like a gradient. The BackColorGroup property changes only the background color of group captions. Use the BackColor, BackColorList property to change the background color for a specific group. Use the group's Picture property to assign a picture the group's list.