amenity=parcel_locker carto rendering

there is an ongoing discussion on GitHub about showing parcel lockers on the main map.
It’s not clear whether the proposed icon is intuitive enough and I would appreciate your comments.

Link to discussion with images:

hi, thanks for your RFC. I’m not sure what it would be, a “Parcel Locker”, and I’ve checked on the Wikipedia, but I still do not understand how it is used. I suspect they do not exist in Panama, where there’s no post boxes and no delivery to the door except in parts of the capital town. the thing that I’ve seen here, closely resembling the wikipedia pictures for ‘parcel locker’, that’s mailboxes racks outside post offices. I never paid attention to whether there’s oversize boxes, and I would say no.