fixes

closet/api/api_container.lua

@@ -248,6 +248,7 @@ end)
 function closet.register_container(name, d)
 	local def = table.copy(d)
 	def.drawtype = 'mesh'
+	def.use_texture_alpha = true
 	def.paramtype = "light"
 	def.paramtype2 = "facedir"
 	def.is_ground_content = false

closet/closet.lua

@@ -7,6 +7,7 @@ closet.register_container("closet", {
 	tiles = {
 		"closet_closet.png",
 	},
+	use_texture_alpha = true,
 	selection_box = {
 		type = "fixed",
 		fixed = { -1/2, -1/2, 0.062500, 1/2, 1.5, 1/2 },