How can I change the visual styles used in Web browser applications

How can I change the visual styles used in Web browser applications

The Framework uses Cascading Style Sheets to define the visual aspects of Web browser applications. The cascading style sheets are shipped in three sets where each set supports a different skin. The shipped cascading style sheets are:

Cascading Style Sheet Name	Description	Should you modify this?
VF_VS001.css	Styles common to all skins.	No.
VF_VS001_<skin>.css where <skin> is WIN, WEB or XP	Styles specific to each skin that you should not modify.	Not recommended.
UF_VS001_<skin>.css where <skin> is WIN, WEB or XP	Styles specific to each skin that you might modify.	Possibly.

 

Please note the following before attempting to modify any style sheet:

New versions of the Framework will overwrite any installed cascading style sheet files. You need to save any changes you make and may need to reapply them after upgrading to new Framework versions.

You need some knowledge of cascading style sheets to make style sheet changes. Numerous training and tutorial resources related to cascading style sheets can be found on the Internet. 

Support issues related to changes you make to shipped style sheets will not be accepted.   

Style sheets are complex to implement and test. They may represent a significant diversion that impacts on your project schedules. We recommend making style sheet changes after you have completed implementing the functional components of your application.