How to Fill a PowerPoint 2007 Shape with Color
A PowerPoint shape or text box is transparent until you add a fill color. Besides colors, you can fill PowerPoint shape with a picture, a gradient, or a texture. To add fill to a PowerPoint shape, follow these steps:
Click to select the object that you want to apply a fill to.
Clicking anywhere within an object should select it.
Click the Format tab.
The formatting window appears.
Click the Shape Fill button.
A drop-down list appears.
Choose a fill color, picture, gradient, or texture.
Choose No Fill to remove the fill color, picture, gradient, or texture from an object.
You can also choose fills for an object in the Format Shape dialog box. Right-click an object and choose Format Shape to open this dialog box.