Specular, gloss, whatever. I read these things and forget them, read it again, forget again.
While we have no TSW SDK it file it under "forgotten stuff". And when we have that, the gloss may not be the first thing I dig into.
I love white socks, they are my own hallmark. I just did not remember axle boxes can be so big.
When I read about the weather blueprint in 2008 or so, I thought "this can be wrong". We should all examine our engines under neutral light, white balance set to flash. After the creator is satisfied, the route builder can come up with his or her artistic perception of the lighting at that specific location.
It would be fun to hunt down figures for the ratio of ambient light in the open field in the Netherlands, for various weather conditions. If we worry about so many things, we should worry about that, too.