The WinPanel™ control is an addition to the list of Ultimate UI for Windows Forms controls. The WinPanel control comes with the flexibility of styling introduced by the Presentation Layer Framework™ as well as the features of the .Net Panel control, such as scrolling and auto-sizing. Up until now, you were limited to use the InboxControlStyler™ with a .Net Panel control, that had limited ability to control the appearance of the Panel.
Since WinPanel is derived from UltraControl, Appearance based styling can be applied to its background and scrollbars as well.