Feature Request

Feature description
The ability to hide certain materials in the holosphere via a single boolean toggle in the material's .json file.
By default, tool materials without an associated item, or with an empty item tag, shouldn't show up in the holosphere.

How it improves the player experience
For players, it would lead to less clutter in the holosphere, since, if the player doesn't have a mod that adds in silver or copper, there's not much purpose to having silver and copper show up in the materials listing.

Tetra synergies
If one of the goals of Tetra is "beauty in simplicity," I think this would make a pretty fine addition. Having a bunch of unused materials taking up the materials list doesn't exactly help that goal.

That's already how it works unless you've turned on development mode.

Well I'm dumb. That was exactly my problem.