Crystal Charge Level?

Hello! 

I’ve been loving the new Crystal Creations stuff pack! It pulls my real-life interests into gameplay so well. But I’ve been super frustrated trying to figure out how to tell how charged my crystals/jewelry are. Is there a mechanic I’m missing that shows this, or was this just a feature that was left out? I don’t want to have to charge nightly if I don’t have to, but I can’t tell how charged they are. If it wasn’t an included feature, is there any chance of it being added in to the game to just see a percentage when you hover over the item?