libpng: libpng 1.6.39 (Portable Network Graphics library)  
libpng:  
libpng: The libpng package contains libraries used by other programs for 
libpng: reading and writing PNG files. The PNG format was designed as a 
libpng: replacement for GIF and, to a lesser extent, TIFF, with many 
libpng: improvements and extensions and lack of patent problems.  
libpng: 
libpng: http://www.libpng.org/pub/png/libpng.html
libpng: 
libpng: 
libpng:

