diff --git a/conductor/tracks/custom_shaders_20260309/plan.md b/conductor/tracks/custom_shaders_20260309/plan.md
index ff3864d..72daa5b 100644
--- a/conductor/tracks/custom_shaders_20260309/plan.md
+++ b/conductor/tracks/custom_shaders_20260309/plan.md
@@ -21,11 +21,11 @@
 - [x] Task: Conductor - User Manual Verification 'Phase 3: Core Shader Pipeline Integration' (Protocol in workflow.md) [5ebce89]
 
 ## Phase 4: Specific Shader Implementations (CRT, Post-Process, Backgrounds)
-- [ ] Task: Write Tests: Verify background shader logic can render behind the main ImGui layer.
-- [ ] Task: Implement: Add "Dynamic Background" shader implementation (e.g., animated noise/gradients).
-- [ ] Task: Write Tests: Verify post-process shader logic can capture the ImGui output and apply an effect over it.
-- [ ] Task: Implement: Add "CRT / Retro" (NERV theme) and general "Post-Processing" (bloom/blur) shaders.
-- [ ] Task: Conductor - User Manual Verification 'Phase 4: Specific Shader Implementations' (Protocol in workflow.md)
+- [x] Task: Write Tests: Verify background shader logic can render behind the main ImGui layer. [836168a]
+- [x] Task: Implement: Add "Dynamic Background" shader implementation (e.g., animated noise/gradients). [836168a]
+- [x] Task: Write Tests: Verify post-process shader logic can capture the ImGui output and apply an effect over it. [905ac00]
+- [x] Task: Implement: Add "CRT / Retro" (NERV theme) and general "Post-Processing" (bloom/blur) shaders. [905ac00]
+- [~] Task: Conductor - User Manual Verification 'Phase 4: Specific Shader Implementations' (Protocol in workflow.md)
 
 ## Phase 5: Configuration and Live Editor UI
 - [ ] Task: Write Tests: Verify shader and window frame settings can be parsed from `config.toml`.