Apple QuickTake 150 (for Windows) - Manual (Page 44)

4 Choose the image depth you want.
The image depth you choose depends on the printer to which you plan to
send the image or the monitor on which you plan to display it.
Most of the choices are self-explanatory. Here’s some additional information:
m 256 System Colors uses the default colors for a 256-color monitor.
m 256 Custom Colors adjusts the 256 colors to the scene or subject, showing
an image at its best. However, this setting may cause other color images on
your desktop to look strange.
5 If necessary, change the file’s extension.
You may want to give the file a new three-character extension to help
identify it.
6 Click the Save button (or press Return).
36 Chapter 3