While SharePoint comes with templates that give your site a certain look and feel, many organizations, divisions, or teams may want to customize or change the look and feel of their site to match their own unique requirements or preferences. In this section, you learn some of the alternatives that exist in SharePoint for doing so, including the use of themes and master pages.
You can customize your sites using Cascading Style Sheets (CSS), which allow you to separate the presentation aspects of a site from your content and HTML. SharePoint takes advantage of style sheets in many ways, one of the most notable being themes. SharePoint themes control the color scheme of a site, things like the background color of a menu item or toolbar. See Figure 8-59 for an example of a site with a Theme applied.
Try It Out: Apply a Theme
Themes are used to brand your site to suit a corporate color scheme without the risk of disturbing the layout.