Schema guidelines

A schema decides how a construct reads before any document is written in it. These are the conventions the first-party libraries follow — the precedent a new element, environment or mark should match so the language stays one language. How a schema is declared belongs to each SDK; these pages are about the choices made inside one.

#Pages

Naming
Attribute names, enum values, aliases, and the names a schema may not declare.
Attributes
What every attribute declares about its values, how flags are named, how defaults are written, and the implicit attribute and declaration order.
Data-driven style
Each kind of look one style attribute: an expression giving one look per item, written as a look, a list, a map applied to a column or reading, or a ramp or scale.
Animation
How an attribute joins the surface a cue can animate.

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