Leather armour patterns

Instead of only banners, you can put leather armour into the loom block, where you can add banner patterns. This would be great for uniform making and roleplay, for example Napoleonic uniforms using the saltire, or adressing medical personel with a red plus. It would be used only for leather armour (because you can't sew through iron and diamond etc). It would make much more armour variants than armour trims offer right now, and of course, it can be dyed in different colours, and stacked up to 6 patterns, like banners.