Use the BackColorNode property to define the default background color for nodes. Use the BackColor property to define the background color for a specific node. Use the ClearBackColor method to clear the node's background color. Use the BackColor property to specify the control's background color. Use the Picture property to display a picture on the control's background. Use the SelColor property to specify the color to mark the selected node. Use the ForeColorNode property to specify the foreground color for all nodes. The DefaultNodePadding property defines the padding for all nodes.