OK. So, remember when we had those debates back and forth about onyx stones = Shar symbols and some were debating that just because you wear an onyx stone it doesn't mean you're a follower of Shar?
So, was selling an onyx stone in BG3 to a vendor, and noticed the description. It clearly says that it is said that wherever Shar walks onyx stones are dropped, or something to that effect.
So, even Larian is agreeing that onyx = Shar symbol.
Therefore, once again I'd like to revisit the "We should have our characters roll immediately upon meeting Shadowheart to see if we recognize her armor as Sharran and then provide our character with some sort of idea who Shar is. A brief description of her being a Goddess of Darkness and Loss, etc. Then, Shadowheart reveal happens immediately. She is a cleric of Shar. Done.
Either that or put her in something besides Dark Justiciar armor. If that armor is vital to the story and makes the most sense for her to be wearing, because maybe she was resurrected in it or something and didn't have time to change, then fine, but we need a roll in the beginning so players know who Shar is and that Shadowheart is a cleric of Shar. Fail the roll, and you don't know. Find out during the rest of the game.
Anyway, this was sparked by the onyx description and thought I'd throw it back out there for re-review.