The zinc rooftops of Haussmann-era Paris weather from shiny silver to a stable matte bluish-gray patina, casting the skyline in "every shade of gray" beneath overcast light. Dormers and mansards step across the horizon in standing-seam rhythm above the 19th-century city.

This design system distills that cool silver-zinc patina into screen tokens, pairing the weathered metal palette with the high-contrast Didone serifs of Belle Époque Paris — Playfair Display, Cormorant Garamond, and Italiana — for an elegant, editorial register.