property Tree.BackColorAlternate as Color
Specifies the background color used to display alternate items in the control.

Color A color expression that indicates the alternate background color.

By default, the control's BackColorAlternate property is zero. The control ignores the BackColorAlternate property if it is 0 ( zero ). Use the BackColor property to specify the control's background color. Use the SelBackColor property to specify the selection background color.