100644 blob ec4af9473f1780d291c1c30caa0d0c1b50127b2b	README.txt
040000 tree a551e4ded9122c15ee3b3e0823b8ee16fd44d3df	gregbook
040000 tree 512fd9de18d70432cf72cde797f8f4fc61e8960d	libtests
040000 tree d2bd8222c7de3a79c2d4b3ca0dbc4a18def9ac6b	pngminim
040000 tree c95cd0fa97e5040b400b48efa07fdf1fede3aea3	pngminus
040000 tree 34316c2bd3ee0a180a644815c8a03e3627beb3ae	pngsuite
040000 tree 9d4a4e217a2bf820cdc1b86eee2baf230a256b9d	visupng