It is a real #$%* to polish that finish off too. Very, very hard surface.
Typically, I try to get two Switch Housings that have a color match so they don't look like a 'married set". Same for the gauges, they fade according to their environment. Pick both sets that look alike and match the finish of the Master Cyl
It is at least 30 years ols and this is OK. It is an old bike so looking old is fine & normal thing
I get a woodie for a black set of switches with a bright cherry red kill switch on the right side........ but pink on grey will do
I guess that the switch housings could be painted but I tend to sort them so that they kinda match the fade on the rest of those unrestored items