If you are a user of Gmail, learn how to change the look of the Gmail interface by using a feature built into Gmail, called “Themes”…
Here is how it works in Ramblin’ Rick’s own words:
1.) Open up Gmail.
2.) Top right corner of Gmail, click on “Settings”
3.) Once you are into the “Settings”, click on “Themes”
4.) Select (click on) the “Theme” of your choice and the Gmail interface will magically change.
You can even select your own colors under the Themes Settings…