White on black "engraving"

Having discovered that MU4 can do white on black display on a screen, would it be worth making this a property of a score [which could be changed or overridden if needed] rather than a user setting to be applied when a score is engraved or displayed?

Indeed why restrict this to just black and white?

I am getting to like the effect of white on black. Making this a score property might make it easier for some - with hopefully only slight disadvantages, if any, for others.