We have a counter that tells us how many there are stored in the sightstone already; please add a number active to that as well. Also please give a different icon over the ward for the deploying player only so that we can easily tell which wards are deployed from out individual sightstone.

These changes will make it much easier to manage the ghost wards correctly. As the game proceeds (and more wards from more players accumulate), it becomes increasingly difficult to avoid accidentally deactivating a ward you want to remain up because you didn't remember that it was from your sightstone or realize that you were at the sightstone deploy limit.