README documents a retired design system: #080808/#00FFD1/Geist/"strict dark mode" are all false on main #2

Summary

README.md documents a design system the site no longer has. Three claims are
false on main as of 1edadd4, two of them because of commits I landed this
session, one that was already wrong before.

What the README claims vs what ships

The Geist line was already wrong

Before any of this session's commits, app/layout.tsx loaded IBM_Plex_Mono
and merely named its CSS variable --font-geist:

const ibmPlexMono = IBM_Plex_Mono({ weight: [...], variable: '--font-geist' })

Tailwind then mapped sans to var(--font-geist). So the body face was IBM Plex
Mono, never Geist. The variable name made the README look consistent with the
code while both were wrong.

Reproduction

$ grep -n 'font-body\|Bricolage\|Inter' app/layout.tsx
$ grep -n 'c-background\|c-accent' app/globals.css | head -4
$ grep -n '080808\|00FFD1\|Geist' README.md

The first two print the shipping values; the third prints the documented ones.

Why this ranks high

/philosophy now says, in copy I wrote, that "the benchmarks on this site are
numbers you can reproduce from the repo, not numbers we liked the sound of." A
README that misdescribes the repo's own stack undercuts exactly that claim, and
it is the first file a visitor from GitHub reads.

Environment

Next.js 14.2.16, main @ 1edadd4.