Shared by Google gallery contains 28 different themes (plus the default), so that we can easily change the look of Google Chrome browser. To select the one that most interests us, Just click on the "Apply theme.
Please note that the themes are only available for users of Google Chrome 3.0. This means that if you use the last stable version (22.214.171.124), we have to download the latest Beta version (126.96.36.199) - http://www.google.com/intl/en/landing/chrome/beta/ .
Take advantage of the new themes Google Chrome - https://.google.com/chrome/intl/en/themes/index.html