Got tired of the look and feel of the default Gmail page? Have been using hacks like Greasemonkey Scripts to spruce up the Gmail page? Not any more. Gmail now officially has Themes support. It looks like they are rolling out this feature only for certain accounts so if you are lucky to be on that list give this a try. Follow these steps to enable themes on Gmail,
Click on the “Settings” link at the top of the Gmail page.
If you can see a “Themes” tab then you are one of those few. Click on the “Themes” tab and you should be able to see a bunch of (31 at the time of writing this) themes listed. Choose the one you like and your Gmail page will reload with the new theme.
Enjoy the new look of your Gmail.
If you have any questions please make sure to ask in comments.