Stockpile is storage. Like the item containers that can be made, but more spread out. Sure the item within storage are cluttered in the stockpile, but it is easier to notice items within it than having floating icons all over among them. which would make selecting specific items within stockpile become confusing and cluttered. What you are saying is you want more clutter to the stockpile with the icon thing; assuming I am thinking what you are talking about.
Stockpile is just temporary storage anyhow. I use it all the time to collect things. I only minus things from it when I have enough storage containers to account for the numbers the items can store. It being part of the management aspect, the less clutter to recognize what I have left at a glance seems most feasible.
However since the only way something can be moved is if placed first, things in storage don’t need it since it has not been placed. Only placed items really need such an icon for moving, since they are fixed. Storage items are not fixed to the spot in storage they are put. That is the reason when changing filters, one can move items from one area for storage to another storage area.
That would create confusion on what is placed and what is stored. At least the way I see it. Although an interesting idea it merely just has a count in storage and not a specific item; although can be selected individually to be placed from that storage area. So only the placement icon would make sense to be hovering over the item, and not the move icon. If it was to be an icon.
It might be just the way I play that I don’t see the need for such a thing. That is me though.
Also that I actually don’t have trouble telling things apart when they are in that type of storage; just laying on the ground. Can’t really expect others to have such good perception, not that mine is any better, just the way I trained my eyes over the years. Not the best, but always had an affinity for discerning and distinguishing variations at a glance. Gotten a little worse over the years, but manage to keep to certain extent.
What I am mainly getting at is what purpose beyond creating more clutter does it serve; which it is cluttered enough, and that might make a bit more trickier to separate, if such is used that way.
That would be reason I am only 50-50 on it. I can see the use for it, but I can also see the bit of disadvantage it would put in. It is more of weight odds to what would convey easier. At end it really isn’t up to me whether it would fit nicely though, I just play the game the way I do.