diff --git a/conductor/tracks/ui_theme_overhaul_20260308/plan.md b/conductor/tracks/ui_theme_overhaul_20260308/plan.md
index 0fd6e6b..d80bbc3 100644
--- a/conductor/tracks/ui_theme_overhaul_20260308/plan.md
+++ b/conductor/tracks/ui_theme_overhaul_20260308/plan.md
@@ -18,24 +18,24 @@
 - [x] Task: Write visual regression tests or simulation scripts to verify the new theme's consistency. 59e1453
 - [x] Task: Conductor - User Manual Verification 'Phase 2: Professional Style & Theming' (Protocol in workflow.md)
 
-## Phase 3: Advanced Visual Effects (Shaders)
+## Phase 3: Advanced Visual Effects (Shaders) [checkpoint: 49a1c30]
 - [x] Task: Implement Custom UI Shaders. 0b49b3a
     - [x] Develop and integrate shaders for rounded window corners and soft shadows.
     - [x] Develop and integrate shaders for glass/acrylic (blur) effects on selected panels.
     - [x] Develop and integrate shaders for improved text anti-aliasing.
 - [x] Task: Perform a performance audit to ensure shaders do not degrade FPS. 0b49b3a
-- [~] Task: Conductor - User Manual Verification 'Phase 3: Advanced Visual Effects (Shaders)' (Protocol in workflow.md)
+- [x] Task: Conductor - User Manual Verification 'Phase 3: Advanced Visual Effects (Shaders)' (Protocol in workflow.md)
 
-## Phase 4: Layout Management & Multi-Viewport
-- [ ] Task: Implement Multi-Viewport Support.
-    - [ ] Add the "Multi-Viewport" toggle checkbox to the main menu bar.
-    - [ ] Ensure the application correctly handles panel detachment and re-attachment.
-- [ ] Task: Implement UI Layout Presets.
-    - [ ] Create a management system (Save/Load/Delete) for window layout presets.
-    - [ ] Ensure presets capture window geometry and the Multi-Viewport state.
-    - [ ] Persist layout presets to the project configuration (`manual_slop.toml` or a dedicated file).
-- [ ] Task: Verify layout restoration accuracy across multiple presets.
-- [ ] Task: Conductor - User Manual Verification 'Phase 4: Layout Management & Multi-Viewport' (Protocol in workflow.md)
+## Phase 4: Layout Management & Multi-Viewport [checkpoint: 429bb92]
+- [x] Task: Implement Multi-Viewport Support. 429bb92
+    - [x] Add the "Multi-Viewport" toggle checkbox to the main menu bar.
+    - [x] Ensure the application correctly handles panel detachment and re-attachment.
+- [x] Task: Implement UI Layout Presets. 429bb92
+    - [x] Create a management system (Save/Load/Delete) for window layout presets.
+    - [x] Ensure presets capture window geometry and the Multi-Viewport state.
+    - [x] Persist layout presets to the project configuration (`manual_slop.toml` or a dedicated file).
+- [x] Task: Verify layout restoration accuracy across multiple presets. 429bb92
+- [~] Task: Conductor - User Manual Verification 'Phase 4: Layout Management & Multi-Viewport' (Protocol in workflow.md)
 
 ## Phase 5: Final Polish & Verification
 - [ ] Task: Conduct a final UI audit for "professionalism" and consistency.