A. You can substitute the basic SharePoint theme for one of the built-in themes by performing the following steps:

  1. Navigate via Microsoft Internet Explorer (IE) to the Sharepoint site whose theme you want to change. (You must be a user with "Web designer" privileges.)
  2. Click Site Settings.
  3. Under Customization, select the "Apply theme to site" option.
  4. Select the desired theme from the list to view it in the Preview window and click Apply, as the figureshows.