Apple PowerBook (Duo 270C) - Manual (Page 154)

Changing the background pattern
You can change the background pattern that appears on your
computer screen in the General Controls panel.
1. Choose Control Panels from the Apple (K) menu and
open the General Controls panel.
You can choose from a variety of patterns provided, or you
can create your own design by editing one of the patterns
supplied. You can also use the colors or grays you want in the
pattern.
2. To see the patterns available, click either of the small
triangles above the sample pattern.
3. Click the sample pattern to see the new pattern on
your desktop.
138 Chapter 9: Sound, Color, and Video
Color bar appears if
your monitor is set to
display colors or grays.