Adamantine Ammunition
 

I added this to the open issues on GitHub, wasn't sure if I needed to add it here also.

When adding Adamantine ammunition it shows up as Silver instead.

And as a side note. Why is ammunition flagged with an error when you add it on the weapons tab? Looking at the Validation errors it says "Silver Arrows: Click the Edit button and pick the weapon to use for this item."

Clicking on the edit button just brings up the Custom Item Name box.