Hello guys, I already started a thread about this, but I haven’t heard back from anyone. Am I the only one who cares about this?
The Battlenet icon is still round?! How many years has it been since the MacOS design update? Five?
Blizzard, why are you so lazy?! 
Seriously, all my apps now follow the new design standard — the rounded square icon. But Blizzard still can’t update theirs.
I even tried changing it myself — found a great custom icon online — but after restarting Battlenet, it just goes back to the default round one.
As a perfectionist, this drives me absolutely crazy.
Guys, does anyone know how to permanently change the default icon? 
I mean, is there any way to make it stick after restarting Battlenet?
https://imgur.com/a/ExBLrA1