@composure19d: Go Sadly it does not seem like that there is one.
Would be awesome if they make a separate shield bar (just like life, just for shields) and add the possibility to make the shielded health bar to integrate the lost shield amount into the bar's percentage. Then you would have an awesome hero bar for an Archon hero.
There is a strange field with "addToTotal" or something like that, but I wasn't able to make much sense out of it. Maybe that one can do the latter and it is just bugged right now. At least it caused the shieldbar to extend across the whole screen with low shield values.

composure19d AuthorIs there a bar for just the shields? I got everything working but I just cannot find out a shield one, only a health/shield combo. Any help?