now that you’ve described them, I understand better why you think there could be a tznius issue. At first I also thought it sounded like a crazy question, but now the question makes sense.
That being said, since I’ve never seen it, I have no real opinion on it. Just because the question makes sense, that doesn’t mean there is anything wrong with it. My guess would be that it’s fine, and that it’s not something you should be worrying about.
But you’re probably better off asking people who know what you’re talking about.