The collection of patterns from which you may choose is stored in the Desktop Pattern Prefs file. You can transport one collection of patterns between computers by moving this file alone.
The desktop and utility pattern choices you make with the Desktop Pattern application are written directly to the 'ppat' resource of the System suitcase. These pattern choices can be altered with the Desktop Patterns application; an AppleScript, QuicKeys, or Frontier script designed to perform the same function; or by using a resource editor like ResEdit and modifying the 'ppat' system resource.
The Desktop Patterns application is a component of System 7.5 and later and is located in the Control Panels folder.
Warning: The instructions in this article refer to using ResEdit to alter your software. Apple Computer, Inc., is not liable for any damage done to your software through the use of ResEdit.