iDVD '09 (7.x): Creating a DVD without a theme
If you don't want to use any of the iDVD themes for your project, start with a simple theme and then customize it. (Some of the earlier themes, such as Brushed Metal or Green Linen, contain fewer design elements.) Replace the background with your own image and then choose the button and text styles that fit your design.
You can save your design as a favorite theme to use again for other projects. For more information about customizing themes, click a link below.