Now Gmail allows you to create a custom theme, it allows you to add 2 pics, one will be displayed as the background and other will be displayed at the footer.
Here is the procedure :-
- Login to your Gmail account and the click on the Setting link at the top-right corner of the page.
- Now click on Theme tab,
- Once you are in Theme page scroll down and you will a option saying Create your own theme, click on it
- Now you will see a pop-up window opening,
- Here you will find many section where you can select color or Image, You can either chose image from Picasa album or from your computer.
- Once you are done just hit Save Button and you are done.