Marca
The place is Terminal 400; 400.wtf is its address. One sign carries both: a station in the "current" state on a horizontal track, colored by the line you're on.
/01 Station mark · favicon
Station pages use their own line; other pages ride a random line per
visit (blue without JavaScript). The center is the surface's fg: ink on
light tabs, paper on dark ones. Source: packages/ds/src/brand.ts.
/02 Logo · everyday mark
The mark and the name. Without a line it follows the page's
current line (--ds-line-current), always matching the
favicon. Header, footer, anywhere the site signs its name.
/03 Name board · alternative mark
A platform name board: graphite plate, line-color stripe, the address above the name. For share cards, signage moments and print; the logo stays the everyday mark. The default share image is built from it (share card).