You have already learned how to add different fills for shapes in PowerPoint 2007. As you have seen in those shape fill tutorials, the Shape Fill gallery displays only 4 fill options: solid fill, picture fill, gradient fill, and texture fill. There is one more shape fill option, the Slide background fill which you can’t access from Shape Fill gallery. The Slide Background fill option is different from other shape fill options because instead of filling something into the selected shape, it makes the slide background area behind the shape visible into the selected shape.
Learn how to add slide background fill to a selected shape in PowerPoint 2007 for Windows.

