The "silks" I would assume change the amount of light coming in. We thought they were UGLY and did not want less light. We have MANY windows in our home because we wanted lots of light. Our DRV has lots of windows and have never felt the need for more light. I can tell you if you order the dark wood package you will regret it. We went to a fellow DRV owner that had the dark wood and it felt VERY dark!
OP, DRV will NOT change the tint so work with what you have!