diff --git a/docs/AUDIT_REDESIGN.md b/docs/AUDIT_REDESIGN.md
index 1d92993..75fba45 100644
--- a/docs/AUDIT_REDESIGN.md
+++ b/docs/AUDIT_REDESIGN.md
@@ -56,7 +56,7 @@ Status: ⬜ open · 🟦 in PR · ✅ fixed (commit hash on the right).
 | D1  | News, ResearchCards, Screener show plain "Loading…" text. Should be skeleton placeholders to prevent layout jank.                  | 🟡       | ✅     | 0fb1d63    |
 | D2  | Light theme broke contrast in legacy tabs (`SettingsTab`, `ConfigTab`, etc.) which were styled for dark.                            | 🟡       | ✅     | 5ca8183    |
 | D3  | `TickerHeader` exchange is hard-coded "NASDAQ".                                                                                    | 🟢       | ✅     | 1e502b9    |
-| D4  | `ScreenerView` "More sectors…" `<select>` doesn't visually highlight the chosen sector pill once selected.                          | 🟡       | ⬜     |            |
+| D4  | `ScreenerView` "More sectors…" `<select>` doesn't visually highlight the chosen sector pill once selected.                          | 🟡       | ✅     | 3bf1ca7    |
 | D5  | Layout is fixed-width (72 px sidebar + 308 px right panel). Breaks below ~1024 px viewport. No mobile-web responsive breakpoints.   | 🟠       | ✅     | a9c33b1    |
 | D6  | `VisualRuleBuilder` and `CodeStrategyEditor` use `setTimeout` without cleanup — leak warning if component unmounts mid-timer.        | 🟢       | ⬜     |            |
 | D7  | No keyboard shortcuts (⌘K search, ⌘S save in code editor, ⌘Enter run backtest).                                                    | 🟢       | ⬜     |            |
diff --git a/docs/COMPLETION_CHECKLIST.md b/docs/COMPLETION_CHECKLIST.md
index 59e899d..d83a6e2 100644
--- a/docs/COMPLETION_CHECKLIST.md
+++ b/docs/COMPLETION_CHECKLIST.md
@@ -414,7 +414,7 @@ Expected platform result:
   Acceptance: exchange comes from profile/market metadata when available and
   falls back to a neutral placeholder, not always `NASDAQ`.
 
-- [ ] `D4` Highlight selected Screener sector from "More sectors".
+- [x] `D4` Highlight selected Screener sector from "More sectors". Implementation: `3bf1ca7`.
   Acceptance: the selected sector is visually reflected in pills/select state,
   keyboard and screen-reader state remains clear, and sorting/filtering remains
   unchanged.