Eli Zaretskii <eliz@gnu.org> writes:

> That's indeed the dilemma here: on the one hand this makes it easier
> to change several faces, but OTOH the change must also satisfy the
> requirements and user expectations of each of the inheriting faces.  I
> don't know which of these is more important.

I think that the least surprising behavior would be to use the same
fixed width font family for line numbers and for buffer content by
default.

Nico