I understand this would be a potentially low priority on the development list but I feel like some additional sound effects, in the same style/theme/etc of the current ones, would add a lot more responsiveness to the UI and add a better feel to it.
I think this would add a lot to the UI and make the experience of navigating it a bit more pleasant, although as I said previously as this is just a cosmetic thing it may not be high on the list, but at least it could be something to look into later down the line?
These wouldn’t even need to be high-quality studio-produced sounds. Anything along the lines of what we have currently would do, in my opinion. ^^