# Phase 4 checkpoints

Phase 4 starts from `f696f23` on `codex/ui-redesign-phase4`. The 57 preservation contracts in [Phase 2](../phase-2/PRESERVATION_MATRIX.md) and the [Phase 3 impact matrix](../phase-3/PRESERVATION_IMPACT_MATRIX.md) remain authoritative.

- [P4-01 semantic colors, focus and loaded fixtures](p4-01/README.md)
- [P4-01 preservation and visual evidence](p4-01/TRACEABILITY.md)

Only P4-01 is authorized in this checkpoint. No route/layout redesign, P4-02, B07, backend/schema work or production deployment is included. F04 remains open pending actual production ingress evidence.