End-user can change theme

The Framework theme is specified when the Framework is designed, but you can also specify that the end-user can override the theme. If you select this option, end-users can override the visual style for their application using the Overall Theme option of the Windows menu.

Note that it may be necessary on some PCs for the user to shut down and restart the Framework before the theme is fully implemented.

This property is in the Visual Styles tab.