> Moved! I think I'll look for some reference images for Mitch's lantern.
> 
> Would the invisible flame still create light? I imagine it to have light that can only be seen through things, but actually looking at it it's invisible. Is that determined, or up to me?

Yeah, we wanted it to not be apparent when looking directly at it, but still somehow cast light. I think if it didn't create light it'd be a worthless flame, lel. Your guess at what it does works too.