Do not wear the gray or yellow pant's with anything other than the matching color jersey. it looked even worse with the white helmets.
In fact save the white helmets for the all white unis. Hopefully this weekend will be a black out, but I doubt it. If it was I would think the fans would have heard so we could black out the stadium....unless they're giving out shirts which they do on occasion. That's usually saved for homecoming games though.