Good idea on the grey.
I know the player2 and credits are blocked right now. I need to measure my 7digit nixies and make sure all the windows are big enough. I intend to do that later.

As far as the "1-4 can play"; my thought was the original didn't really "show" up that well. This way there is a complementary color scheme going on. I'm pretty sure there are two #47s under this font in the original.