Tear of the Goddess should show refunded mana

tells you how much damage you've shielded using its active, and even shows you how many deaths you've defied using its passive (iirc). Shouldn't have a number when you however over it to tell you how much mana you've refunded using the Awe passive? It would be a really nice touch. I can see it creating a bit of a mess however, as it already shows a number when you hover over the description (mana charges)