Developing themes for Drupal is an art in itself and will not be covered in this book. Luckily, you don't have to write your own theme to be able to vary the look and feel of your Drupal site. There are plenty of contributed themes to download and use. Six months after Drupal 7.0 was launched, 169 themes were available.

You will find contributed themes at the same place as contributed modules at drupal.org under the tab download & extend. Themes are installed in one of two ways, like modules:

• By using the link install new theme found at the theme overview page and pasting a link to the theme archive at drupal.org.
• By manually downloading and extracting the theme and placing it in the folder sites/all/themes in your Drupal installation. (Not the root folder themes, used for core themes.)

When this is done, the new theme will be available in the themes overview list and may be used in the same way as other themes.