By default, the node is enabled. Use the Enabled property to disable the node. If a node is disabled, it is not selectable. A disabled node shows grayed the node's caption and the node's icon. Use the Caption property to specify the caption of the node. Use the Image property to assign an icon to a node. Use the Picture property to assign a custom size picture to a node. Use the Enabled property to disable the control. Use the BackColor property to specify the node's background color.