Missrini! Henna Question!

This post is mostly for Rini because she's our henna expert. But all feel
free at add any input.

Rini-

This question doesn't have to do much with hair, but I couldn't think of a
better person to ask about a henna related subject! I was
wondering...could one darken their freckles with henna? I found (as I did a
Google on the subject) most girls are trying to get rid of their
freckles!...which I can't understand because I've always liked freckles...on
the face esspecially. Anyway, so I'm having trouble finding info on how to
keep my freckles because I find as I get older they are fading away
Do you think it would be too obvious that they are faux freckles? I don't
want to look like I'm costume makeup for the part of Orphan Annie or
anything...I was hoping for a subtle highlighting of the freckles that are
already there. Thanks Rini!