For ease of reading I'll make the same report again:
I've made a mod that adds quality effects to mining drills, and done so by adding new prototypes, (and changing the placed item to the added prototype at runtime)
The added prototypes have the field "hidden = true"
They still show up in the mined by tooltip as so:
For reference the relevant prototypes being added do have the field "hidden = true":
Relevant code
Code publicly available at https://github.com/RandomUsername27/quality-miners
