The match is not perfect, but after all your work Wotto and the fact that the printer won't take any cash, I'm pretty satisfied. The other thing that's not obvious is that where you can see the original colours (to the far left) that area is untouched by any balls (the pop bumper is there) so it is in pristine condition. However, the areas on the sides of the window (that use those colours for other things) has some discolouration etc from age and ball travel etc, so is slightly darker and much closer to the printed decal. As such, the colours here are in fact a better match overall for the balance of the playfield, and the overlay will not be as obvious than if it were bright and shiny new colour when the rest is aged, if you see my reasoning.
