Normalizing Apple-specific CgBI-fried PNG files. Originally by jongware.
Some more details on CgBI can be found here: https://theapplewiki.com/wiki/PNG_CgBI_Format
Note that this repo is created as an archive.
This code does not depend on any external libraries, so compiling is as easy as this:
$ cc pngdefry.c
Note that you need to compile only pngdefry.c, because it includes miniz.c.