Slides
A slide is a screen fixed at 1280×720 (16:9) — a page that happens to be widescreen. Same wordmark, type, Rules, and dark mode. Titles sit on the 12-column grid; a section divider is one Rule and one label; a deck inverts wholesale.
One system, every surface.
The discipline is the identity
SectionEvery value descends from a token
Three rules
Token, not value
A measured value
A number invented for one spot. It can't be traced, and it drifts the moment the design moves.
A token
A value that descends from the scale. Change it once and every surface follows.
From worldview to surface
Worldview
A white field, one black arrow, pointing forward.
Tokens
The picture becomes named values — oklch, rem, px, mm.
Primitives
Surface, Rule, Mark, Annotation, Swatch, Series.
Media
The same identity re-projected on every plane.
The system at a glance
Channels by quarter
Charts carry no color. The grayscale ramp ranks series light→dark — the darkest gray leads.
A value you can't trace to a token doesn't belong.The canon
The monochrome discipline is the identity — there is no accent to lean on.