ASP.NET themes are a collection of properties that define the appearance of pages and controls in your Web site. A theme can include skin files, which define property settings for ASP.NET Web server controls, and can also include cascading style sheet files (.css files) and graphics. By applying a theme, you can give the pages in your Web site a consistent appearance.

The topics in this section describe what ASP.NET themes are, how they work, and how to create and apply them.