So I am always playing around with the interface of my gmail account to try to make it as simple and clean as possible. Well lets thank the folks at google, because they have taken it into their own hands to create a very nice new template!
SO, this is how you make the switch:
-Sign into your Gmail
-go to the Mail Settings
-Click on the Themes tab
-There will be two new names one is Preview and Preview(Dense). Select one
-POOF! You just got updated to a more modern and refined interface!