I agree, although there’s not really much you can do with the corrugated stainless steel bodies on the newer cars (New Jersey Transit has some smooth sides on their stainless steel cars and apply color there, possibly as a vinyl), and I personally like the way the bare metal looks. As for the Pullman cars, the new liveries have been disappointing to put it nicely... But since they’re not wheelchair accessible they have to be put with a newer car, so there is always going to be a changing design down the consist. My favorite colors on them used to be the RTA white with brown and red window stripes, but now I like the Metra silver with light blue and red stripes. It clashes the least with the other cars in my opinion.