The ASP.NET Interface Controls can be customized using ASP.NET Themes/Skins. It is recommended to use
this approach, so that you keep the common settings for all the interface controls in your project in a single
location (in the .skin file).
Thus, each time you need to propagate a change related to the controls in all the pages of your project, you need to modify a single file, which saves time and prevents you from generating bugs.