Bramamine told me to let you know these things, Kaissac, so I thought I'd make a post here in the bug forum.
You are missing a few vanilla textures, by the way. The critical hit star is missing and the two sets of potion particles on the particles.png are missing. The particles.png located in the GUI folder that is currently labeled as "unused" is actually the particle effect wild wolves give when you give them a bone and they aren't tamed yet. The armor overlay symbols that show in the inventory GUI where armor goes, are missing. They are located in the top right corner of the items.png. They were re-added in a recent update. If you ever want help naming/ identifying something, let me know.