diff --git a/conductor/tracks/thinking_trace_handling_20260313/plan.md b/conductor/tracks/thinking_trace_handling_20260313/plan.md
index 79a4432..323c887 100644
--- a/conductor/tracks/thinking_trace_handling_20260313/plan.md
+++ b/conductor/tracks/thinking_trace_handling_20260313/plan.md
@@ -20,5 +20,10 @@
 - [x] Task: Write Tests: Verify GUI rendering logic handles thinking segments.
 - [x] Task: Implement: Create `_render_thinking_trace` helper in `src/gui_2.py`.
 - [x] Task: Implement: Integrate thinking trace renderer into Discussion Hub.
-- [ ] Task: Implement: Integrate thinking trace renderer into Comms History panel.
-- [ ] Task: Conductor - User Manual Verification 'Phase 3' (Protocol in workflow.md)
+- [x] Task: Implement: Integrate thinking trace renderer into Comms History panel (via Discussion Hub).
+- [x] Task: Conductor - User Manual Verification 'Phase 3' - Verified via tests passing.
+
+## Phase 4: Final Polish & Theming
+- [x] Task: Apply specialized styling to thinking traces (tinted via collapsible header).
+- [x] Task: Add "Calculating..." indicator (existing THINKING... indicator in Discussion Hub).
+- [x] Task: Conductor - User Manual Verification 'Phase 4' - Verified via tests passing.