Canon / brand

rule.brand.illustration-grammar · canon

Illustration is a production grammar

Geometry, complexity budgets, silhouettes, and misuse galleries make illustration scalable.

Guidance

Document shape language and character anatomy; forbid freeform stylization that breaks system.

Verification contract

illustration modules + character system present

Supporting references

• ref.duolingo.design — Duolingo Design (Brand Guidelines hub)
• ref.duolingo.illustration-characters — Duolingo Design — Multi-character system
• ref.duolingo.illustration-duo — Duolingo Design — Character construction grammar
• ref.duolingo.illustration-shape — Duolingo Design — Illustration shape language

Implementations and verification artifacts

• artifact.doc.illustration — Character & illustration grammar doc · design-system/brand/character-system.md
• artifact.script.brand-contract — Brand manifest and Product Lexicon validator script · packages/brand/src/index.ts