property ExContextMenu.SelBackColor as Color
Retrieves or sets a value that indicates the selection background color.

TypeDescription
Color A Color expression that specifies the background color / visual appearance of the selected item. The last 7 bits in the high significant byte of the color 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.
The SelBackColor property specifies the visual appearance of the item being selected / highlighted. The SelForeColor property specifies the foreground color of the item being selected / highlighted.  The ForeColor property specifies the control's foreground color. The BackColor property specifies the control's background color. The Background property specifies the visual appearance for different parts of the control. The Appearance property specifies the menu's frame appearance.

The following screen shot shows the control's selection with the default colors:

The following screen shot shows the control's selection with a different visual appearance: