Ever since Google let us choose our own colors in the Gmail interface, we’ve been rocking a garish crimson motif, but there was something missing. Why couldn’t we choose our own photos as backgrounds? Now we can.
Our wish was granted on Thursday, when an announcement on the Gmail Blog said you can personalize the Gmail interface with your own photos, coming from either Google’s Picasa or your own hard drive.
Here’s how you can make it happen when you’re in Gmaill:

• Go to the Settings menu
• Click the Themes tab
• On the bottom left, select “create your own theme”
• Click on the link that invites you to select your own background image
• Choose an image, either from Picasa or from your own hard disk
• Enjoy your new look