When setting an ItemStack which has the enchanted effect (done by overridding hasEffect in the item's class) as a tab icon, the recipe backgrounds of some handlers are not rendered correctly anymore:

I've only observed this with Xtreme Crafting, Petal Apothecary, Runic Altar, Mana Infusion, Elven Trade and Pure Daisy, so maybe this is a similar problem as #92.