Visual
Colors, typography, spacing, iconography, imagery, layout — deterministic tokens that compile to pixels.
xtyle
One definition. Every platform. The open spec for portable brand identity.
Verbal
Names, taglines, jargon, copy libraries, boilerplate — deterministic text that compilers place where it goes.
Voice
Tone, values, positioning, art direction, register scaling — structured guidance for humans and LLMs.
Cascade
Hierarchical inheritance with bottom-up derivation. Teams inherit from leagues. Products inherit from companies. Or the reverse.