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Intermediate
10 min
Updated May 18, 2026

Theme System

Implement dark/light persistence without hydration flicker.

themehydrationcssui

Prerequisites

  • Project builds locally.
  • Relevant files identified.
  • Feature branch is up to date.

Outcomes

  • Clear implementation scope
  • Repeatable validation
  • Documented follow-up checks

note: Stay concrete

Use project-specific files, commands, and routes instead of generic instructions.

tip: Always verify

Attach at least one command or page check to prove the change works.

Why this matters

Theme System directly affects delivery quality and support load, so this page should stay practical and specific.

Implementation notes

Apply theme system changes in small increments and keep examples mapped to existing repository files.

Verification

Run relevant checks and verify route behavior in browser and through CLI where applicable.

Code examples

Practical command

bash
npm run typecheck
npm run lint
npm run build

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