You can use the PanelHeader property in the C1NavBarButton Collection Editor to change the default text that displays in the header for the preset buttons. To customize the font style of the header, you can use the PanelHeaderFont property.
The height of the panel header can be changed through the PanelHeaderHeight property.
You can customize the C1NavBar panels' appearance properties such as its BackColor and BackGroundImage through the C1NavBarPanel class.