Hello, can someone help me figure out how to make 2D/Flat player heads in the GUI using a resource pack in version 1.21.4? I've tried using several JSON files from various resource packs I found online, but none of them worked. And I did try to solve it myself, ofc, but got nowhere. It seems like something changed in a recent Minecraft version and it's no longer functioning. Does anyone know how to fix this so it works in 1.21.4? Has anyone else dealt with this, maybe?