diff --git a/check_mma.py b/check_mma.py
new file mode 100644
index 0000000..6d5b834
--- /dev/null
+++ b/check_mma.py
@@ -0,0 +1,28 @@
+from unittest.mock import MagicMock, patch
+from src.gui_2 import App
+import sys
+
+app = MagicMock()
+app.mma_streams = {}
+app._pending_mma_spawns = [{"ticket_id": "T-001"}]
+app._pending_mma_approvals = []
+app._pending_ask_dialog = False
+app.is_viewing_prior_session = False
+app.mma_status = "idle"
+app.active_track = None
+app.active_tickets = []
+app.mma_tier_usage = {
+  "Tier 1": {"input": 0, "output": 0, "model": "gemini-3.1-pro-preview"},
+  "Tier 2": {"input": 0, "output": 0, "model": "gemini-3-flash-preview"},
+  "Tier 3": {"input": 0, "output": 0, "model": "gemini-2.5-flash-lite"},
+  "Tier 4": {"input": 0, "output": 0, "model": "gemini-2.5-flash-lite"},
+ }
+app.perf_profiling_enabled = False
+
+with patch("src.gui_2.imgui") as mock_imgui:
+    App._render_mma_dashboard(app)
+    print(f"text_colored called: {mock_imgui.text_colored.called}")
+    if not mock_imgui.text_colored.called:
+        print("Calls to app methods:")
+        for call in app.mock_calls:
+            print(call)
diff --git a/conductor/tracks/gui_refactor_stabilization_20260512/plan_context_refactor.md b/conductor/tracks/gui_refactor_stabilization_20260512/plan_context_refactor.md
index ceca301..b44b75a 100644
--- a/conductor/tracks/gui_refactor_stabilization_20260512/plan_context_refactor.md
+++ b/conductor/tracks/gui_refactor_stabilization_20260512/plan_context_refactor.md
@@ -20,9 +20,9 @@ Refactor the monolithic `_render_context_composition_panel` in `src/gui_2.py` in
 - [ ] Task: Extract the context presets section into `_render_context_presets()`.
 
 ### Phase 3: Assembly & Verification
-- [ ] Task: Reassemble `_render_context_composition_panel` by calling the new sub-methods.
-- [ ] Task: Run the custom AST linter to ensure all scopes are correctly closed.
-- [ ] Task: Run fast render tests to verify no regressions in the context panel.
+- [x] Task: Reassemble `_render_context_composition_panel` by calling the new sub-methods.
+- [x] Task: Run the custom AST linter to ensure all scopes are correctly closed.
+- [x] Task: Run fast render tests to verify no regressions in the context panel.
 
 ## Verification & Testing
 - **AST Linting**: `uv run python scripts/check_imgui_scopes.py src/gui_2.py`
diff --git a/tests/test_ast_inspector_extended.py b/tests/test_ast_inspector_extended.py
index f9a6013..5a34978 100644
--- a/tests/test_ast_inspector_extended.py
+++ b/tests/test_ast_inspector_extended.py
@@ -17,6 +17,7 @@ def test_ast_inspector_line_range_parsing():
  
  # 3. Patch imgui and mcp_client
  with patch("src.gui_2.imgui") as mock_imgui, \
+      patch("src.gui_2.imscope") as mock_imscope, \
       patch("src.gui_2.mcp_client.py_get_code_outline", return_value=mock_outline):
   
   # begin_popup_modal needs to return (expanded, opened)
@@ -26,6 +27,15 @@ def test_ast_inspector_line_range_parsing():
   # radio_button returns (changed, active)
   mock_imgui.radio_button.return_value = (False, False)
   
+  # Setup imscope mocks
+  mock_imscope.window.return_value.__enter__.return_value = (True, True)
+  mock_imscope.child.return_value.__enter__.return_value = True
+  mock_imscope.table.return_value.__enter__.return_value = True
+  mock_imscope.tree_node_ex.return_value.__enter__.return_value = True
+  mock_imscope.tab_item.return_value.__enter__.return_value = (True, True)
+  mock_imscope.style_color.return_value.__enter__.return_value = None
+  mock_imscope.style_var.return_value.__enter__.return_value = None
+  
   # 4. Call the method
   App._render_ast_inspector_modal(app)
   
diff --git a/tests/test_auto_slices.py b/tests/test_auto_slices.py
index 7f49995..860b9d3 100644
--- a/tests/test_auto_slices.py
+++ b/tests/test_auto_slices.py
@@ -50,7 +50,8 @@ def test_add_selected_triggers_auto_slices(mock_app):
  mock_app.files = [f_mock]
  mock_app._ui_picker_selected = {"test.py"}
  
- with patch('src.gui_2.imgui') as mock_imgui:
+ with patch('src.gui_2.imgui') as mock_imgui, \
+      patch('src.gui_2.imscope') as mock_imscope:
   mock_imgui.begin_popup_modal.return_value = (True, True)
   mock_imgui.button.side_effect = lambda label, size=None: label == "Add Selected"
   mock_imgui.checkbox.return_value = (False, False)
@@ -58,6 +59,12 @@ def test_add_selected_triggers_auto_slices(mock_app):
   mock_imgui.ImVec2 = MagicMock()
   mock_imgui.WindowFlags_ = MagicMock()
   
+  # Setup imscope mocks to act as context managers
+  mock_imscope.table.return_value.__enter__.return_value = True
+  mock_imscope.tree_node_ex.return_value.__enter__.return_value = True
+  mock_imscope.child.return_value.__enter__.return_value = True
+  mock_imscope.window.return_value.__enter__.return_value = (True, True)
+  
   with patch.object(mock_app, '_populate_auto_slices') as mock_populate:
    mock_app._render_add_context_files_modal()
    
@@ -71,7 +78,8 @@ def test_add_all_triggers_auto_slices(mock_app):
  mock_app.files = [f_mock]
  mock_app.context_files = []
  
- with patch('src.gui_2.imgui') as mock_imgui:
+ with patch('src.gui_2.imgui') as mock_imgui, \
+      patch('src.gui_2.imscope') as mock_imscope:
   mock_imgui.button.side_effect = lambda label, size=None: label == "Add All##addall"
   mock_imgui.collapsing_header.return_value = True
   mock_imgui.begin_child.return_value = True
@@ -84,6 +92,12 @@ def test_add_all_triggers_auto_slices(mock_app):
   mock_imgui.TableColumnFlags_ = MagicMock()
   mock_imgui.TreeNodeFlags_ = MagicMock()
   
+  # Setup imscope mocks to act as context managers
+  mock_imscope.table.return_value.__enter__.return_value = True
+  mock_imscope.tree_node_ex.return_value.__enter__.return_value = True
+  mock_imscope.child.return_value.__enter__.return_value = True
+  mock_imscope.window.return_value.__enter__.return_value = (True, True)
+  
   with patch.object(mock_app, '_populate_auto_slices') as mock_populate:
    mock_app._render_context_composition_panel()
    
diff --git a/tests/test_context_composition_panel.py b/tests/test_context_composition_panel.py
index 0aade91..cdf8667 100644
--- a/tests/test_context_composition_panel.py
+++ b/tests/test_context_composition_panel.py
@@ -3,40 +3,40 @@ import inspect
 
 
 def test_context_composition_panel_replaces_placeholder():
-    import src.gui_2 as gui_2
+ import src.gui_2 as gui_2
 
-    source = inspect.getsource(gui_2.App._gui_func)
-    assert "_render_context_composition_placeholder" not in source, (
-        "Placeholder should be replaced"
-    )
-    assert "_render_context_composition_panel" in source, (
-        "Should have _render_context_composition_panel"
-    )
+ source = inspect.getsource(gui_2.App._render_discussion_hub)
+ assert "_render_context_composition_placeholder" not in source, (
+  "Placeholder should be replaced"
+ )
+ assert "_render_context_composition_panel" in source, (
+  "Should have _render_context_composition_panel"
+ )
 
 
 def test_context_composition_has_save_load_buttons():
-    import src.gui_2 as gui_2
+ import src.gui_2 as gui_2
 
-    source = inspect.getsource(gui_2.App._render_context_composition_panel)
-    assert "Save as Preset" in source or "save" in source.lower(), (
-        "Should have Save functionality"
-    )
-    assert "Load Preset" in source or "load" in source.lower(), (
-        "Should have Load functionality"
-    )
+ source = inspect.getsource(gui_2.App._render_context_presets)
+ assert "Save##ctx" in source or "save" in source.lower(), (
+  "Should have Save functionality"
+ )
+ assert "load_context_preset" in source or "load" in source.lower(), (
+  "Should have Load functionality"
+ )
 
 
 def test_context_composition_shows_files():
-    import src.gui_2 as gui_2
+ import src.gui_2 as gui_2
 
-    source = inspect.getsource(gui_2.App._render_context_composition_panel)
-    assert "files" in source.lower() or "Files" in source, "Should show files"
+ source = inspect.getsource(gui_2.App._render_context_composition_panel)
+ assert "files" in source.lower() or "Files" in source, "Should show files"
 
 
 def test_context_composition_has_preset_list():
-    import src.gui_2 as gui_2
+ import src.gui_2 as gui_2
 
-    source = inspect.getsource(gui_2.App._render_context_composition_panel)
-    assert "context_presets" in source or "preset" in source.lower(), (
-        "Should reference presets"
-    )
+ source = inspect.getsource(gui_2.App._render_context_composition_panel)
+ assert "context_presets" in source or "preset" in source.lower(), (
+  "Should reference presets"
+ )
diff --git a/tests/test_discussion_takes_gui.py b/tests/test_discussion_takes_gui.py
index 9119a49..d5046ef 100644
--- a/tests/test_discussion_takes_gui.py
+++ b/tests/test_discussion_takes_gui.py
@@ -40,7 +40,8 @@ def app_instance():
 
 def test_render_discussion_tabs(app_instance):
  """Verify that _render_discussion_panel uses tabs for discussions."""
- with patch('src.gui_2.imgui') as mock_imgui:
+ with patch('src.gui_2.imgui') as mock_imgui, \
+      patch('src.gui_2.imscope') as mock_imscope:
   # Setup defaults for common imgui calls to avoid unpacking errors
   mock_imgui.collapsing_header.return_value = True
   mock_imgui.begin_combo.return_value = False
@@ -56,6 +57,15 @@ def test_render_discussion_tabs(app_instance):
   mock_imgui.begin_tab_bar.return_value = True
   mock_imgui.begin_tab_item.return_value = (False, False)
 
+  # Setup imscope mocks
+  mock_imscope.window.return_value.__enter__.return_value = (True, True)
+  mock_imscope.child.return_value.__enter__.return_value = True
+  mock_imscope.table.return_value.__enter__.return_value = True
+  mock_imscope.tree_node_ex.return_value.__enter__.return_value = True
+  mock_imscope.tab_item.return_value.__enter__.return_value = (True, True)
+  mock_imscope.style_color.return_value.__enter__.return_value = None
+  mock_imscope.style_var.return_value.__enter__.return_value = None
+
   app_instance._render_discussion_panel()
 
   # Check if begin_tab_bar was called
@@ -69,6 +79,7 @@ def test_render_discussion_tabs(app_instance):
 def test_switching_discussion_via_tabs(app_instance):
  """Verify that clicking a tab switches the discussion."""
  with patch('src.gui_2.imgui') as mock_imgui, \
+      patch('src.gui_2.imscope') as mock_imscope, \
       patch('src.app_controller.AppController._switch_discussion') as mock_switch:
   # Setup defaults
   mock_imgui.collapsing_header.return_value = True
@@ -83,6 +94,15 @@ def test_switching_discussion_via_tabs(app_instance):
 
   mock_imgui.begin_tab_bar.return_value = True
   
+  # Setup imscope mocks
+  mock_imscope.window.return_value.__enter__.return_value = (True, True)
+  mock_imscope.child.return_value.__enter__.return_value = True
+  mock_imscope.table.return_value.__enter__.return_value = True
+  mock_imscope.tree_node_ex.return_value.__enter__.return_value = True
+  mock_imscope.tab_item.return_value.__enter__.return_value = (True, True)
+  mock_imscope.style_color.return_value.__enter__.return_value = None
+  mock_imscope.style_var.return_value.__enter__.return_value = None
+
   # Simulate 'take_1' being active/selected
   def side_effect(name, p_open=None, flags=None):
    if name == "Take 1###main_take_1":
diff --git a/tests/test_gui_discussion_tabs.py b/tests/test_gui_discussion_tabs.py
index 9f333d6..a9a5ffc 100644
--- a/tests/test_gui_discussion_tabs.py
+++ b/tests/test_gui_discussion_tabs.py
@@ -24,9 +24,19 @@ def mock_gui():
 
 def test_discussion_tabs_rendered(mock_gui):
     with patch('src.gui_2.imgui') as mock_imgui, \
+         patch('src.gui_2.imscope') as mock_imscope, \
          patch('src.imgui_scopes.imgui', new=mock_imgui), \
          patch('src.app_controller.AppController.active_project_root', new_callable=PropertyMock, return_value='.'):
         
+        # Setup imscope mocks
+        mock_imscope.window.return_value.__enter__.return_value = (True, True)
+        mock_imscope.child.return_value.__enter__.return_value = True
+        mock_imscope.table.return_value.__enter__.return_value = True
+        mock_imscope.tree_node_ex.return_value.__enter__.return_value = True
+        mock_imscope.tab_item.return_value.__enter__.return_value = (True, True)
+        mock_imscope.style_color.return_value.__enter__.return_value = None
+        mock_imscope.style_var.return_value.__enter__.return_value = None
+
         # We expect a combo box for base discussion
         mock_imgui.begin_combo.return_value = True
         mock_imgui.selectable.return_value = (False, False)
diff --git a/tests/test_gui_kill_button.py b/tests/test_gui_kill_button.py
index e68c353..82edf29 100644
--- a/tests/test_gui_kill_button.py
+++ b/tests/test_gui_kill_button.py
@@ -6,7 +6,8 @@ def test_gui_has_kill_button_method():
  assert hasattr(App, '_cb_kill_ticket'), "App must have _cb_kill_ticket method"
 
 def test_render_ticket_queue_table_columns():
- with patch("src.gui_2.imgui") as mock_imgui:
+ with patch("src.gui_2.imgui") as mock_imgui, \
+      patch("src.gui_2.imscope") as mock_imscope:
   mock_imgui.begin_table.return_value = True
   mock_imgui.table_setup_column = MagicMock()
   mock_imgui.table_headers_row = MagicMock()
@@ -25,6 +26,15 @@ def test_render_ticket_queue_table_columns():
   mock_imgui.pop_style_color = MagicMock()
   mock_imgui.same_line = MagicMock()
   
+  # Setup imscope mocks
+  mock_imscope.window.return_value.__enter__.return_value = (True, True)
+  mock_imscope.child.return_value.__enter__.return_value = True
+  mock_imscope.table.return_value.__enter__.return_value = True
+  mock_imscope.tree_node_ex.return_value.__enter__.return_value = True
+  mock_imscope.tab_item.return_value.__enter__.return_value = (True, True)
+  mock_imscope.style_color.return_value.__enter__.return_value = None
+  mock_imscope.style_var.return_value.__enter__.return_value = None
+  
   from src.gui_2 import App
   app = App.__new__(App)
   app.active_track = MagicMock()
diff --git a/tests/test_gui_symbol_navigation.py b/tests/test_gui_symbol_navigation.py
index e3a38ee..d381fa5 100644
--- a/tests/test_gui_symbol_navigation.py
+++ b/tests/test_gui_symbol_navigation.py
@@ -7,10 +7,20 @@ def test_render_discussion_panel_symbol_lookup(mock_app, role):
  # Mock imgui, mcp_client, and project_manager as requested
  with (
   patch('src.gui_2.imgui') as mock_imgui,
+  patch('src.gui_2.imscope') as mock_imscope,
   patch('src.gui_2.mcp_client') as mock_mcp,
   patch('src.gui_2.project_manager') as mock_pm,
   patch('src.markdown_helper.imgui_md') as mock_md
  ):
+  # Setup imscope mocks
+  mock_imscope.window.return_value.__enter__.return_value = (True, True)
+  mock_imscope.child.return_value.__enter__.return_value = True
+  mock_imscope.table.return_value.__enter__.return_value = True
+  mock_imscope.tree_node_ex.return_value.__enter__.return_value = True
+  mock_imscope.tab_item.return_value.__enter__.return_value = (True, True)
+  mock_imscope.style_color.return_value.__enter__.return_value = None
+  mock_imscope.style_var.return_value.__enter__.return_value = None
+
   # Set up App instance state
   mock_app.perf_profiling_enabled = False
   mock_app.ai_status = "idle"
diff --git a/tests/test_gui_synthesis.py b/tests/test_gui_synthesis.py
index 78e8782..0dab9e1 100644
--- a/tests/test_gui_synthesis.py
+++ b/tests/test_gui_synthesis.py
@@ -36,11 +36,21 @@ def app_instance():
 
 def test_render_synthesis_panel(app_instance):
  """Verify that _render_synthesis_panel renders checkboxes for takes and input for prompt."""
- with patch('src.gui_2.imgui') as mock_imgui:
+ with patch('src.gui_2.imgui') as mock_imgui, \
+      patch('src.gui_2.imscope') as mock_imscope:
   mock_imgui.checkbox.return_value = (False, False)
   mock_imgui.input_text_multiline.return_value = (False, app_instance.ui_synthesis_prompt)
   mock_imgui.button.return_value = False
 
+  # Setup imscope mocks
+  mock_imscope.window.return_value.__enter__.return_value = (True, True)
+  mock_imscope.child.return_value.__enter__.return_value = True
+  mock_imscope.table.return_value.__enter__.return_value = True
+  mock_imscope.tree_node_ex.return_value.__enter__.return_value = True
+  mock_imscope.tab_item.return_value.__enter__.return_value = (True, True)
+  mock_imscope.style_color.return_value.__enter__.return_value = None
+  mock_imscope.style_var.return_value.__enter__.return_value = None
+
   # Call the method we are testing
   app_instance._render_synthesis_panel()
 
diff --git a/tests/test_gui_window_controls.py b/tests/test_gui_window_controls.py
index a753688..b37ab22 100644
--- a/tests/test_gui_window_controls.py
+++ b/tests/test_gui_window_controls.py
@@ -10,8 +10,18 @@ def test_gui_window_controls_minimize_maximize_close():
  with patch("src.gui_2.win32gui") as mock_win32gui, \
       patch("src.gui_2.win32con") as mock_win32con, \
       patch("src.gui_2.imgui") as mock_imgui, \
+      patch("src.gui_2.imscope") as mock_imscope, \
       patch("ctypes.pythonapi.PyCapsule_GetPointer") as mock_get_pointer:
 
+  # Setup imscope mocks
+  mock_imscope.window.return_value.__enter__.return_value = (True, True)
+  mock_imscope.child.return_value.__enter__.return_value = True
+  mock_imscope.table.return_value.__enter__.return_value = True
+  mock_imscope.tree_node_ex.return_value.__enter__.return_value = True
+  mock_imscope.tab_item.return_value.__enter__.return_value = (True, True)
+  mock_imscope.style_color.return_value.__enter__.return_value = None
+  mock_imscope.style_var.return_value.__enter__.return_value = None
+
   # Setup mock for HWND
   mock_viewport = MagicMock()
   mock_viewport.platform_handle_raw = "mock_capsule"
diff --git a/tests/test_log_management_ui.py b/tests/test_log_management_ui.py
index aef7ddf..fe34b51 100644
--- a/tests/test_log_management_ui.py
+++ b/tests/test_log_management_ui.py
@@ -33,6 +33,7 @@ history = []
 @pytest.fixture
 def app_instance(mock_config: Path, mock_project: Path, monkeypatch: pytest.MonkeyPatch) -> App:
  monkeypatch.setattr("src.models.CONFIG_PATH", mock_config)
+ monkeypatch.setattr("src.gui_2.filedialog", MagicMock())
  with patch("src.project_manager.load_project") as mock_load, \
  patch("src.session_logger.open_session"), \
  patch("src.session_logger.reset_session"):
@@ -67,11 +68,10 @@ def test_render_log_management_logic(app_instance: App) -> None:
  app.show_windows["Log Management"] = True
  # Mock LogRegistry
  with patch("src.log_registry.LogRegistry") as MockRegistry, \
- patch("src.gui_2.imgui.begin") as mock_begin, \
+ patch("src.gui_2.imscope") as mock_imscope, \
  patch("src.gui_2.imgui.begin_table") as mock_begin_table, \
  patch("src.gui_2.imgui.text") as mock_text, \
  patch("src.gui_2.imgui.end_table"), \
- patch("src.gui_2.imgui.end"), \
  patch("src.gui_2.imgui.push_style_color"), \
  patch("src.gui_2.imgui.pop_style_color"), \
  patch("src.gui_2.imgui.table_setup_column"), \
@@ -81,7 +81,7 @@ def test_render_log_management_logic(app_instance: App) -> None:
  patch("src.gui_2.imgui.same_line"), \
  patch("src.gui_2.imgui.text_colored"), \
  patch("src.gui_2.imgui.separator"), \
- patch("src.gui_2.imgui.button"):
+ patch("src.gui_2.imgui.button", return_value=False):
 
   mock_reg = MockRegistry.return_value
   mock_reg.data = {
@@ -91,10 +91,15 @@ def test_render_log_management_logic(app_instance: App) -> None:
     "metadata": {"reason": "test", "size_kb": 10, "message_count": 5}
    }
   }
-  mock_begin.return_value = (True, True)
+  app._log_registry = mock_reg
+  
+  mock_window_cm = MagicMock()
+  mock_window_cm.__enter__.return_value = (True, True)
+  mock_imscope.window.return_value = mock_window_cm
+
   mock_begin_table.return_value = True
   app._render_log_management()
-  mock_begin.assert_called_with("Log Management", app.show_windows["Log Management"])
+  mock_imscope.window.assert_called_with("Log Management", app.show_windows["Log Management"])
   mock_begin_table.assert_called()
   mock_text.assert_any_call("session_1")
 
diff --git a/tests/test_mma_approval_indicators.py b/tests/test_mma_approval_indicators.py
index 0d80a84..b04bc26 100644
--- a/tests/test_mma_approval_indicators.py
+++ b/tests/test_mma_approval_indicators.py
@@ -101,7 +101,16 @@ class TestMMAApprovalIndicators:
    _pending_ask_dialog=False,
   )
   imgui_mock = _make_imgui_mock()
-  with patch("src.gui_2.imgui", imgui_mock):
+  with patch("src.gui_2.imgui", imgui_mock), patch("src.gui_2.imscope") as mock_imscope:
+   # Setup imscope mocks
+   mock_imscope.window.return_value.__enter__.return_value = (True, True)
+   mock_imscope.child.return_value.__enter__.return_value = True
+   mock_imscope.table.return_value.__enter__.return_value = True
+   mock_imscope.tree_node_ex.return_value.__enter__.return_value = True
+   mock_imscope.tab_item.return_value.__enter__.return_value = (True, True)
+   mock_imscope.style_color.return_value.__enter__.return_value = None
+   mock_imscope.style_var.return_value.__enter__.return_value = None
+
    App._render_mma_dashboard(app)
   combined = _collect_text_colored_args(imgui_mock)
   assert "APPROVAL PENDING" not in combined, (
@@ -112,7 +121,16 @@ class TestMMAApprovalIndicators:
   """'APPROVAL PENDING' badge must appear when _pending_mma_spawn is set."""
   app = _make_app(_pending_mma_spawn={"ticket_id": "T-001"})
   imgui_mock = _make_imgui_mock()
-  with patch("src.gui_2.imgui", imgui_mock), patch("src.gui_2.math") as mock_math:
+  with patch("src.gui_2.imgui", imgui_mock), patch("src.gui_2.imscope") as mock_imscope, patch("src.gui_2.math") as mock_math:
+   # Setup imscope mocks
+   mock_imscope.window.return_value.__enter__.return_value = (True, True)
+   mock_imscope.child.return_value.__enter__.return_value = True
+   mock_imscope.table.return_value.__enter__.return_value = True
+   mock_imscope.tree_node_ex.return_value.__enter__.return_value = True
+   mock_imscope.tab_item.return_value.__enter__.return_value = (True, True)
+   mock_imscope.style_color.return_value.__enter__.return_value = None
+   mock_imscope.style_var.return_value.__enter__.return_value = None
+
    mock_math.sin.return_value = 0.8
    App._render_mma_dashboard(app)
   combined = _collect_text_colored_args(imgui_mock)
@@ -124,7 +142,16 @@ class TestMMAApprovalIndicators:
   """'APPROVAL PENDING' badge must appear when _pending_mma_approval is set."""
   app = _make_app(_pending_mma_approval={"step": "test"})
   imgui_mock = _make_imgui_mock()
-  with patch("src.gui_2.imgui", imgui_mock), patch("src.gui_2.math") as mock_math:
+  with patch("src.gui_2.imgui", imgui_mock), patch("src.gui_2.imscope") as mock_imscope, patch("src.gui_2.math") as mock_math:
+   # Setup imscope mocks
+   mock_imscope.window.return_value.__enter__.return_value = (True, True)
+   mock_imscope.child.return_value.__enter__.return_value = True
+   mock_imscope.table.return_value.__enter__.return_value = True
+   mock_imscope.tree_node_ex.return_value.__enter__.return_value = True
+   mock_imscope.tab_item.return_value.__enter__.return_value = (True, True)
+   mock_imscope.style_color.return_value.__enter__.return_value = None
+   mock_imscope.style_var.return_value.__enter__.return_value = None
+
    mock_math.sin.return_value = 0.8
    App._render_mma_dashboard(app)
   combined = _collect_text_colored_args(imgui_mock)
@@ -136,7 +163,16 @@ class TestMMAApprovalIndicators:
   """'APPROVAL PENDING' badge must appear when _pending_ask_dialog is True."""
   app = _make_app(_pending_ask_dialog=True)
   imgui_mock = _make_imgui_mock()
-  with patch("src.gui_2.imgui", imgui_mock), patch("src.gui_2.math") as mock_math:
+  with patch("src.gui_2.imgui", imgui_mock), patch("src.gui_2.imscope") as mock_imscope, patch("src.gui_2.math") as mock_math:
+   # Setup imscope mocks
+   mock_imscope.window.return_value.__enter__.return_value = (True, True)
+   mock_imscope.child.return_value.__enter__.return_value = True
+   mock_imscope.table.return_value.__enter__.return_value = True
+   mock_imscope.tree_node_ex.return_value.__enter__.return_value = True
+   mock_imscope.tab_item.return_value.__enter__.return_value = (True, True)
+   mock_imscope.style_color.return_value.__enter__.return_value = None
+   mock_imscope.style_var.return_value.__enter__.return_value = None
+
    mock_math.sin.return_value = 0.8
    App._render_mma_dashboard(app)
   combined = _collect_text_colored_args(imgui_mock)
diff --git a/tests/test_mma_dashboard_streams.py b/tests/test_mma_dashboard_streams.py
index d36ddf6..a5a6e8e 100644
--- a/tests/test_mma_dashboard_streams.py
+++ b/tests/test_mma_dashboard_streams.py
@@ -64,7 +64,16 @@ class TestMMADashboardStreams:
   app = _make_app(mma_streams={"Tier 1": "hello"})
   imgui_mock = _make_imgui_mock()
   imgui_mock.begin_child.return_value = True
-  with patch("src.gui_2.imgui", imgui_mock):
+  with patch("src.gui_2.imgui", imgui_mock), patch("src.gui_2.imscope") as mock_imscope:
+   # Setup imscope mocks
+   mock_imscope.window.return_value.__enter__.return_value = (True, True)
+   mock_imscope.child.return_value.__enter__.return_value = True
+   mock_imscope.table.return_value.__enter__.return_value = True
+   mock_imscope.tree_node_ex.return_value.__enter__.return_value = True
+   mock_imscope.tab_item.return_value.__enter__.return_value = (True, True)
+   mock_imscope.style_color.return_value.__enter__.return_value = None
+   mock_imscope.style_var.return_value.__enter__.return_value = None
+
    App._render_tier_stream_panel(app, "Tier 1", "Tier 1")
   
   app._render_selectable_label.assert_called_with('stream_Tier 1', 'hello', width=-1, multiline=True, height=0)
@@ -77,7 +86,16 @@ class TestMMADashboardStreams:
   })
   imgui_mock = _make_imgui_mock()
   imgui_mock.begin_child.return_value = True
-  with patch("src.gui_2.imgui", imgui_mock):
+  with patch("src.gui_2.imgui", imgui_mock), patch("src.gui_2.imscope") as mock_imscope:
+   # Setup imscope mocks
+   mock_imscope.window.return_value.__enter__.return_value = (True, True)
+   mock_imscope.child.return_value.__enter__.return_value = True
+   mock_imscope.table.return_value.__enter__.return_value = True
+   mock_imscope.tree_node_ex.return_value.__enter__.return_value = True
+   mock_imscope.tab_item.return_value.__enter__.return_value = (True, True)
+   mock_imscope.style_color.return_value.__enter__.return_value = None
+   mock_imscope.style_var.return_value.__enter__.return_value = None
+
    App._render_tier_stream_panel(app, "Tier 3", None)
   text_args = " ".join(str(c) for c in imgui_mock.text.call_args_list)
   assert "T-001" in text_args, "imgui.text not called with 'T-001' worker sub-header"
diff --git a/tests/test_shader_live_editor.py b/tests/test_shader_live_editor.py
index 3da9cb3..9ad8974 100644
--- a/tests/test_shader_live_editor.py
+++ b/tests/test_shader_live_editor.py
@@ -6,9 +6,20 @@ def test_shader_live_editor_renders():
  app = App()
  app.show_windows["Shader Editor"] = True
  
- with patch("src.gui_2.imgui") as mock_imgui:
+ with patch("src.gui_2.imgui") as mock_imgui, \
+      patch("src.gui_2.imscope") as mock_imscope:
   mock_imgui.begin.return_value = (True, True)
   mock_imgui.slider_float.return_value = (False, 1.0)
+  
+  # Setup imscope mocks
+  mock_imscope.window.return_value.__enter__.return_value = (True, True)
+  mock_imscope.child.return_value.__enter__.return_value = True
+  mock_imscope.table.return_value.__enter__.return_value = True
+  mock_imscope.tree_node_ex.return_value.__enter__.return_value = True
+  mock_imscope.tab_item.return_value.__enter__.return_value = (True, True)
+  mock_imscope.style_color.return_value.__enter__.return_value = None
+  mock_imscope.style_var.return_value.__enter__.return_value = None
+
   app._render_shader_live_editor()
   assert mock_imgui.begin.called
   assert mock_imgui.end.called