Kathleen Ko, an iGoogle Engineer announced that it is now possible to customize your iGoogle theme. The new feature isn’t quite up yet but will be coming soon at http://www.google.com/ig/tm. After adding an image to your theme, Google will ask you to start customizing.
The iGoogle theme customization tool will ask you to crop your image if necessary, select a color scheme, show you a real-time preview of your theme, and give you the option of making it a public or private theme.
“We hope you have fun customizing your iGoogle homepage with your favorite images, whether they’re photos of your pets or places you’ve visited, drawings, designs, cartoons — or whatever else your heart desires,” stated Ko on The Google Blog.