like in BALDUR'S GATE 20 years ago.
precisely and those could be improved more! Sometimes it looks like devs never played the orginal BG2 or something.
But I think another option would be to introduce a dyeing system (not only for pouches, but also for armors, etc)
So basically you can recolor items for a bit of money, including pouches.
Then, you could decide for yourself, that red means consumables, blue means potions, ...
Problem is that would mean more clutter in shape of dyes! i can see it already like we had dyes in DoS 1 and 2... even when you can simply make npcs smith - whatever that will dye, fix, recraft other stuff for you.