Gmail’s Custom Theme Background

Gmail’s Custom Theme Background: Now you can personalize your Gmail background by picking your favorite photo and make Gmail your own using custom themes. Whether you want to bask on a tropical island or simply reminisce about last year's holiday with the family, you can now customize Gmail's background.  From the Gmail Custom Themes section you can choose Gmail’s Featured backgrounds, search images with keywords, select from your Google+ photos, upload your own images directly or simply paste any image URL.