A couple of months ago Google introduced themes for Gmail that allowed you to choose from about 30 odd skins. If none of them impressed you, then here is your chance. Today Gmail added a new option – "Choose your own colors" using which you can create your own themes.
The new option can be found under the Themes tab on the Settings page. You are able to select colors for everything from the background of your inbox to link text and borders. If you messed up just click on Reset to revert to the default theme.
Those who have never tried Gmail Themes before, now it’s time to start using it.