What you do to see how the paper sees, is to take some bright green object and view it thru your
chosen filter material. A blue tricolor will block all green - hence the green object will appear completely black. But papers are typically a little more complex than this in real use, and with some
you might not be able to achieve DMax (maximum density) without at least some token exposure
of the green layer too. Hence you might get maxiumum contrast, but it still won't look "contrasty"
because you won't achieve a deep black. Not all VC papers are the same in this respect.