Milo BRAND + INTERFACE SYSTEM V1.0
12Interface system

Light / Dark

2 SEMANTIC SETS · 28 TOKENS EACHSOURCE: tokens/color.jsonSWITCH: ⌘⇧D

Light is the archive: mineral cream, black type, museum quiet. Dark is the instrument: carbon, mineral white, a little more Nous in the air. Vermilion stays Milo and Moss stays Offline in both.

One surface, both modes12.01

Not an inversion

Same markup, a second token set: carbon ground, mineral ink, Vermilion lifted, imagery re-mapped to Nous.

TODAY · LIGHT

What matters now?

Grand Teton, Milo National Park recipe
  • Render Day 1 voice track◇ Euangelionm4-pro
    Running
  • Write the pitch email◇ FAM
    Needs you
⌁ local

TODAY · DARK

What matters now?

Grand Teton, Milo Nous recipe
  • Render Day 1 voice track◇ Euangelionm4-pro
    Running
  • Write the pitch email◇ FAM
    Needs you
⌁ local

Same markup, different token set. The imagery re-maps: National Park on cream, Nous on carbon. Grand Teton, Carol M. Highsmith, Library of Congress.

Tokens12.02

The two semantic sets

Every semantic token with its light and dark value, from tokens/color.json.

All semantic tokens, light and dark
Semantic tokenLightDark
Rules12.03

How dark differs

Eight rules for what changes in dark and what must not.

  • 01Ground is carbon, not grey. #0B0C09 — the same black the image engine uses for shadows, so photographs sit in the surface rather than on it.
  • 02Ink is mineral, not white. #EDE9DF keeps the paper feeling of light mode and stops glare at large serif sizes.
  • 03Vermilion lifts to #FF5A32. Contrast on carbon reaches 5.6:1 so the agent colour can carry text, not only marks. Semantics do not change.
  • 04Moss lifts to #8DA64A. Still secondary, still Offline.
  • 05Hairlines get heavier in value, not in width. #2C2E28 reads as a rule on carbon; strong rules become mineral.
  • 06Depth uses less shadow. Level 3 and 4 rely on edge and scrim; shadows on black do little.
  • 07Imagery prefers Nous. Deep blacks, fine dither, Vermilion as signal. National Park stays available where the surface wants warmth.
  • 08The user chooses, the OS suggests. Stored choice wins; otherwise prefers-color-scheme. Both are honoured before first paint.