I’ve always used a color (red, green, yellow) for the back face, and you can see that in this setup (default template). that I also included in
ideally something noticeable, but not too much because as @DaveR said,
it does show through, some gaps. Actually, in some low graphic settings, it can even show between jagged edges.
So, i’ve gone to something subtle but noticeable when I am looking for it.
