As described in subject, is there a way implemented to show tool wear on formspec / item_image_button[]? (for armor in smart_inventory). I know, using list[] it works out of the box, but I like to see it on a button.
In doc/lua_api.txt there is a "serialized itemstring" described with sample 'default:pick_wood 21323'. The MT seems to be parsed the string in item_image_button[] (with 0: no item, with >0: item is displayed) but no wear indicator bar is shown.
Is there a way to get it or is it a missed feature in core? Any known workaround?