By clicking the tiny square beside the word Color, you get a little dialog box known as the Mac OS X Color Picker. (The notes on page 5 describe it in detail.) For now, the important thing is to choose a color that contrasts with the footage behind the lettering. Use white against black, black against white, yellow against blue, and so on.
iMovie doesn’t limit you to TV-safe colors. If colors are too bright (saturated), the edges of the letters can smear and tear when played back on a TV.
If you left your education to the Apple online help, you might assume that there are only two kinds of images that can underlie your titles: video footage or a solid black frame. Fortunately, there’s a third option that greatly expands your creative possibilities: superimposing your text on a still image, such as a photo or some gradient fill you’ve created in, say, Photoshop Elements (Figure 16-4).