If you are gonna make a huge deal about clarity, what about the global ults?
They should add tints to the fast global Ults so that you can't mistake them for allied missiles.
For example In my last game, there were multiple times Where I was hesitant to go in, see a blue giant arrow flying, and think our Ashe had fired the arrow up to help, but I realize mid jump we don't have a Ashe on our team. Or what if both teams had one, in which it would be easier to mistake. This is a user error, but it is easy to make, and could easily be solved by adding a tint.