Contrary to the standard SplitContainer control, Telerik Windows Forms SplitContainer can be skinned to your liking. In addition, it is shipped with a rich set of themes that allow you to easily build slick interfaces with the look-and-feel of Windows Vista, Office 2007, Outlook, etc. The themes can be easily switched using a single property.
Also, all RadControls for WinForms come with a feature we call Theme Color Blending, which allows for tweaking the color scheme of a theme, without the need to redo the theme from scratch. The updated color scheme is applied to all Telerik WinForms controls that you are using in your application for a fresh new look. Or you can build a new theme from scratch to fit your exact visual demands by using the Visual Style Builder productivity tool.