I also heard a claim that such patterns can (marginally) discourage graffiti of the seats. And if branding is a thing you care about, they can reflect some parts of that. London S-Stock trains' seats point to the lines where they run, and there have been Danish trains that straight up feature the old DSB logo in the seat pattern.
Iron_Lynx
joined 2 years ago
My immediate thought
Why did I expect a rickroll there?