Paint tool textures

I recently exported my Left 4 Dead and Left 4 Dead 2 stuff to Gmod, and now several of the textures in my paint tool are weird glitched blood splatters (like you take a top-left or top-right corner of one of the blood splatter decals, and that’s what it sprays.)

Can anyone tell me the folder that has the paint tool decals and/or possibly upload the Gmod default (unmodified) version of the same folder?

Just re-install Gmod.