Ok, it turns out I wasn't imagining things. 3855.DAT, Glass window 1 x 4 x 3 is either modelled incorrectly or the part being used for the glass pains in the 6390 Main Street kit is listed incorrectly at peeron.com. If it's the same part being used (...) (22 years ago, 7-Feb-03, to lugnet.cad.dat.models)
In lugnet.cad.dat.models, Karl Asha writes: <snip> (...) The corect way is to model the sticker separately and call it a sticker. The rule for modelling stickers are summed up in this thread: (URL) at the bottom and the follow on replies -Orion (22 years ago, 8-Feb-03, to lugnet.cad.dat.models)