We have FLOCK everywhere, so I would hope they did their research. However, if they're worse, I am going to get one come November.
I assume the background is flat and the white would be reflective? I wonder how that works with plate readers. I think I have an older plate that was like this, but dark blue background. I'll need to take a look at it.
UK has compulsory yellow on black (rear) and black on white (front). As most govn spped etc cameras work on the rear view, i seems they decided black on yellow was the best combo. Our rules are really strict though for lettering font, spacing, size, material, refelctivity etc.