By default, the BorderHeight property is 2 pixels. The BorderHeight property sets or retrieves a value that indicates the border height of the control. The BorderWidth property sets or retrieves a value that indicates the border width of the control.  The SplitHotBackColor property defines the slit bar's visual appearance/background color, while cursor is hovering the split bar. The SplitBarBackColor property defines the slit bar's visual appearance/background color. The BackColor property specifies the control's background color.