[FernandoAbishai]

Summary

• split custom editor CSS into independent Light and Dark slots
• migrate an existing single custom theme into both slots to preserve current appearance
• resolve System from macOS appearance and react to live appearance changes
• choose/remove each slot independently through the existing sanitized CSS picker

Safety boundary

• renderer preference/schema change only
• existing Electron/AppKit theme picker and CSS sanitizer are unchanged
• no paths or filesystem grants are persisted
• custom editor CSS remains excluded from HTML/PDF/PNG/print/Pandoc export rendering

Validation

• focused custom-theme/preferences/theme-css: 14/14 PASS
• npm run verify: 30 suites / 144 tests PASS
• clean-room, Electron syntax, TypeScript, build and native smokes PASS
• runtime audit unchanged: 0 critical/high/moderate, 3 low

Independent review requested on exact head 3881d5b; worker runtime was temporarily in PRIME_TRANSFER_IN_PROGRESS, so no verdict is claimed yet.

[Copilot]

Copilot was unable to review this pull request because the user who requested the review has reached their quota limit.

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-12T02:27:00.790555Z	3881d5b	PR opened

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[FernandoAbishai]

Independent worker review could not be started because Chat On Steroids repeatedly returned PRIME_TRANSFER_IN_PROGRESS during conversation compaction. No independent PASS is claimed.

Final direct review of exact head 3881d5b9a2a4ae7b049c4261a3d4a2705a504025 found no release blocker: legacy single-theme preferences migrate to both slots and old keys are omitted from normalized state; new schema is authoritative; explicit/system resolution and live listener are covered; custom CSS export behavior and existing host picker/sanitizer/authority boundaries are unchanged. Local npm run verify passes 30 suites/144 tests and GitHub source/native are SUCCESS.