Dark Matter bumper different color

Hi all, anyone else with a dark matter Mustang have a front and rear bumper that don’t match the rest of the car? I have a 24 GT non premium and after washing the car I noticed that the bumpers are basically black and don’t have the same color as the rest of the car. I took it to my dealer and they said it’s normal since the materials are different but all the other cars on the lot don’t have this much of a difference, if any at all. They said there isn’t anything they can do and to escalate to Ford but they’ll say the same as it’s normal, is it? The front is less noticeable but the back for sure in the sun doesn’t look the same. I’d attach pics but the difference can’t be seen on photo that well.