Fractal pattern generator art - Windows Shareware $3.60. It is abstract non-narrative art. The screensaver format is simply ideal for such things. It is quiet and un-obtrusive whilst providing a gentle textured backdrop.

But on closer examination it generates exquisite and endlessly varying patterns. It is truly beautiful. This screensaver has a very long history in its development and the first realisation of the visuals goes back to about 1983 when the algorithms were developed.