Filling the shift pattern in a knob

I do all my engraved stuff the same as the old school factory process was done. believe it or not it is a thin paint that is just sloshed on and wiped off to leave the deeper parts painted. I worked part time when I was 14 in a small parts factory that did oldsmobile knobs and dashes. they did almost everything that way. reverse engraving on speedometer bezels was done with a tempra paint (yeah water based) my 66 is/was done that way too!