Paint in etched surfaces

I'm completely restoring a Pinarello Stelvia. As many of you are aware, Pinarello etches their name in the fork. The fork is fully chromed but I would like to fill that etched area with paint.

I seem to remember that there was something like a crayon that you would rub over the area, fill the etches and after drying you could polish it off of the non-etched area. Does anyone remember that?

Or do I have to spend hours painting in those letters careful to avoid getting the paint onto the fork head?