for interesting discussions of that and several other matters, see ftp://ftp.alvyray.com/Acrobat/4_Comp.pdf ftp://ftp.alvyray.com/Acrobat/17_Nonln.pdf
--- Begin Message ---> There is a mismatch between > PNGs definition of alpha and Plan 9's.Wonderful, thank you. I will fix! ++L
--- End Message ---
