I've come across an issue that doesn't seem to be covered here.
The nightvision goggles seem to be missing from the item_0.png file in this BETA release. Ingame, a purple square with a dark purple border appears in place of the item. The texture for the goggles themselves shows up just fine though. I only noticed since I'm patching together my Painterly texture pack to handle the textures from various mods.
Anyone else have this issue?