yea, it's the shader I use that is not supported by macOS. it's not showing the textures.
If I want to make a mac build, I have to make a different version of the game that uses another shader and will look quite different from other systems. macOS is just a bit odd, because playing the Windows version with Wine on a Mac seems to work fine. A native build just doesn't work for some strange reason. And I don't own a mac. sending my game back and forth to a 3rd party to test the mac build is also really inconvenient.