This is Olaf Barthel's FracBlank screen saver that he wrote many years ago.

I have pulled the gtlayout.library GUI out of the program and compiled it as a
native PPC OS4 binary.  The program can still be configured by using the
tooltypes in the FracBlank.info file.

The full source code is included, including the original GUI source code, but
the makefile, nor any other file, does not reference it.

Douglas McLaughlin