Google have released themes for gmail. This allows you to ‘skin’ your gmail account and give it a more personal look.
To activate themes, login to your account, go to settings and choose the themes tab. Here you can choose to keep the original or opt for a more radical look.
The service is being rolled out, so if you don’t have it yet, you’ll get it over the coming weeks.
Google app users will have to wait for this. Google have been enduring several problems with gmail for app users, namely the labs features not rolling out to all users and now themes not showing up either. Be patient though, these aren’t exactly necessary features!