[WaifuApple]

Ignoring the meme pile on, I agree with Slydria.

When these maps get dark they get REALLY dark, which making these things glow would help with (and it'd make them more magical feeling), and some stuff is hidden under rocks or trees which means unless you're searching under every rock and tree (which isn't the fun kind of exploration) you're relying on someone to tell you it's there most of the time. Honestly, for these kinds of hidden shards, having some kind of 'hint' nearby could make the search more engaging.

Having a way to tell how much is in the area and how much of that you've collected would be invaluable for narrowing a search down, and I think you should be able to check your shard count without having to haul yourself to a crystal.

Edit:
Alright, hear me out.