This quadruples the size of the mod.
https://github.com/Wurst-Imperium/Mo-Glass/tree/master/src/main/resources/assets/mo_glass/textures/block

Together with #17 can make the jar ~8.7 times smaller - 229.75 KB.

There should be some way to exclude the PSD files in Gradle, but I can't seem to find it.

Also, a few repos I saw had psd or scf files in the repository root, I think you can move them there too.

Fixed in #19.