Materials
The live material registry in drawing and model registers.
Every material in the registry is browsable at /materials, one
card per substance, rendered by the same interpreter a model gets. A card shows
the substance's own surface — how rough it is, what pattern it is read by,
whether light passes through — and the value ladder that moves it from 20 to
92 without changing what it is made of.
A material states two things: what it is made of and how light it is.
of names a substance, value names a rung. The substance owns the colour
family and the finish; the rung owns lightness. Both are generated from
lib/materials.mjs and lib/theme.mjs, which is why the gallery and a
compiled model can never disagree about a colour.
See 00 · Entity schema
for the full substance list and the materialdef fields.