The following description of jre/lib/cmm/PYCC.pf appears in the
JRE README file:

      Color-management profile. This file is required only if the
      Java 2D API is used to perform color map conversions.

PYCC.pf is a color profile. We should change the comment in the readme
to say that this file is needed only if one wishes to convert between
the PYCC color space and one of the other default color spaces.