My little suggesion for general improvements in misc-inventory menu (shift+i) and if its easyly doable: in pick up menu (ctrl+p) and drop menu (ctrl-d) too.
You could :

for better readability:

- add subcategories in missile category for rocks, arrows, quarrels and other.
- add subcategories in food category for snacks (cookies/candies/bones etc), herbs, corpses and regular food(rations, bread, cooked things, meat etc).

for player convinience:

- add sorting items in inventory by: name, item type, damage output, quantity, status, dv, pv, weight.
(we could use '<' '>' for switching sorting method and '^' for descending/ascending switch)

cheers :)