When Google rolled out Gmail themes two years ago, users were ecstatic. Not only did they offer users the ability to express themselves on what's arguably a person's most visited site each day, it also allowed them to create their own themes, should they so choose.

Yesterday, Google decided to add a lot to their theme arsenal. On the Official Gmail Blog, Google has unveiled five new themes to satisfy the yearnings of users who felt ignored two years ago. The new themes are Basic Black, Basic White, Android, Tree Tops, and Marker.

Google explains their inspiration for the new themes in a back and forth conversation between two Googlers. The Black and White themes are aimed at nothing more than simplicity. With the Android theme, Google wanted to accommodate its loyal green alien lovers. Tree Tops and and Marker seem more in line with older themes. Tree Tops is subtle and aims for a relaxed feeling, while Marker has more of a "handmade," childish feeling.

To give the new themes a try, go to your Settings in Gmail. Then, select Themes. You should now see them in your list. Below are examples of each: