This OXP runs through the 153 non-corrupt images in Willem van Schaik's PNG
test suite. The licensing terms of the test suite are unspecified, so the
images are not included. Download them from:
ftp://anonymous@ftp.simplesystems.org/pub/libpng/png/images/suite/PngSuite.tar.gz

The test suite's home page is:
http://libpng.org/pub/png/pngsuite.html
