C1OutBar provides several built-in styles such as Custom, System, Office2007Blue, Office2007Black, Office2010Blue, Office2010Black, Office2010Silver, Office2007Silver, Office2003Blue, Office2003Olive, Office2003Silver, OfficeXP, Classic, and WindowsXP that can be easily applied using the VisualStyle property. Note that the VisualStyle property and VisualStyle enumeration supersede the LookAndFeel property and LookAndFeelEnum enumeration, which are now obsolete.
You could also choose what type of look you would like for your tab pages. For example, you may want the buttons to display an image, text, or a combination of both. You can do this by setting the ButtonLook property to Default, Text, Image or TextandImage.
You could also customize your out bar's style using C1OutBar's general appearance properties such as the BackColor, C1OutBar.BackgroundImage, C1OutBar.BackgroundImageLayout, and BackHiColor.
You can set a different background color for each c1outpage using its C1OutPage.BackColor property.
For more information about using these properties to modify page styles for the C1OutBar, see Modifying the Appearance of the C1OutBar.