Duolingo Design — Contextual tone matrix · AwesomeDS

https://design.duolingo.com/writing/tone

What this source teaches

Extract transferable production constraints from Contextual tone matrix.
Prefer system documentation sequences with misuse examples.

Where AwesomeDS applied it

rule.brand.content-design — Content design is a product surface

Implementations and artifacts

artifact.doc.content-design — Voice tone matrix (design-system/brand/voice-tone-matrix.md)

Caveats & anti-imitation

Transfer rules and process; invent original brand expression.

Evidence: first-party-guidance · Verified 2026-07-13 · Cadence 90d

@media (min-width: 68rem) { html .shell[data-sidebar-state="collapsed"] { grid-template-columns: var(--docs-rail) minmax(0, 1fr); } html .shell[data-sidebar-state="collapsed"] .sidebar { padding: var(--space-6) var(--space-5); } html .shell[data-sidebar-state="collapsed"] .rail-heading { flex-direction: row; } html .shell[data-sidebar-state="collapsed"] .brand-lockup > span:last-child { display: flex; } html .shell[data-sidebar-state="collapsed"] .desktop-navigation { display: block; } html .shell[data-sidebar-state="collapsed"] .rail-utilities--desktop { display: flex; } html .shell[data-sidebar-state="collapsed"] .sidebar-toggle { display: none; } }