Planescape had a really remarkable fashion sensibility that distinguished it from any other product line in the Dungeons & Dragons canon, before or since. The slightly florid, slightly grubby Battle Of The Five Points stylings, juxtaposed against extravagant decorative blades, spikes, and other metallic accessories, helped make Sigil feel like a place all its own, and not merely someone's pinup-clean idealized view of culturally nebulous pre-gunpowder Europe.
and is also why I'm always gonna be hugely annoyed at what tieflings are in out of the box standard D&D now
