depends on how you look at things. The library is a rendering library (presumably for calling GL). And what about any of the operating system calls that might

depends on how you look at things. The library is a rendering library (presumably for calling GL). And what about any of the operating system calls that might get used? It's also a library (despite the source code not being in the project). The actual code to compute the logic of the graphics PS1 style, is indeed around 500 lines.