diff --git a/examples/advanced/01_custom_component/CMakeLists.txt b/examples/advanced/01_custom_component/CMakeLists.txt
index 7f2160c..08acf36 100644
--- a/examples/advanced/01_custom_component/CMakeLists.txt
+++ b/examples/advanced/01_custom_component/CMakeLists.txt
@@ -30,4 +30,5 @@ add_dependencies(01_custom_component format-example-sources)
 # Output to build/examples/advanced/01_custom_component/
 set_target_properties(01_custom_component PROPERTIES
     RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/examples/advanced/01_custom_component"
+    CXX_INCLUDE_WHAT_YOU_USE "${IWYU_PATH};-Xiwyu;--error;-Xiwyu;--verbose=3"
 )
diff --git a/examples/advanced/01_custom_component/main.cpp b/examples/advanced/01_custom_component/main.cpp
index 68880c3..54ecb6a 100644
--- a/examples/advanced/01_custom_component/main.cpp
+++ b/examples/advanced/01_custom_component/main.cpp
@@ -14,18 +14,21 @@
 #include "../../adapters/glfw_window_adapter.h"
 #include "../../adapters/simple_opengl_renderer.h"
 #include <GLFW/glfw3.h>
-#include <bombfork/prong/components/button.h>
 #include <bombfork/prong/components/panel.h>
 #include <bombfork/prong/core/component.h>
 #include <bombfork/prong/core/component_builder.h>
 #include <bombfork/prong/core/event.h>
 #include <bombfork/prong/core/scene.h>
 #include <bombfork/prong/rendering/irenderer.h>
+#include <bombfork/prong/theming/color.h>
 
 #include <algorithm>
 #include <cmath>
 #include <functional>
 #include <iostream>
+#include <memory>
+#include <string>
+#include <utility>
 
 using namespace bombfork::prong;
 using namespace bombfork::prong::core;
@@ -42,7 +45,6 @@ class ColorPicker : public Component {
   float selectedG = 0.5f;
   float selectedB = 0.0f;
 
-  bool isDragging = false;
   ColorChangeCallback onColorChange;
 
 public:
diff --git a/examples/advanced/02_custom_layout/CMakeLists.txt b/examples/advanced/02_custom_layout/CMakeLists.txt
index 0ff5dca..3c560f4 100644
--- a/examples/advanced/02_custom_layout/CMakeLists.txt
+++ b/examples/advanced/02_custom_layout/CMakeLists.txt
@@ -21,4 +21,5 @@ add_dependencies(02_custom_layout format-example-sources)
 
 set_target_properties(02_custom_layout PROPERTIES
     RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/examples/advanced/02_custom_layout"
+    CXX_INCLUDE_WHAT_YOU_USE "${IWYU_PATH};-Xiwyu;--error;-Xiwyu;--verbose=3"
 )
diff --git a/examples/advanced/02_custom_layout/main.cpp b/examples/advanced/02_custom_layout/main.cpp
index 5991591..c677da6 100644
--- a/examples/advanced/02_custom_layout/main.cpp
+++ b/examples/advanced/02_custom_layout/main.cpp
@@ -12,9 +12,15 @@
 #include <bombfork/prong/core/component_builder.h>
 #include <bombfork/prong/core/scene.h>
 #include <bombfork/prong/layout/layout_manager.h>
+#include <bombfork/prong/theming/color.h>
 
 #include <cmath>
+#include <functional>
 #include <iostream>
+#include <memory>
+#include <string>
+#include <utility>
+#include <vector>
 
 using namespace bombfork::prong;
 using namespace bombfork::prong::layout;
diff --git a/examples/advanced/03_custom_renderer/CMakeLists.txt b/examples/advanced/03_custom_renderer/CMakeLists.txt
index e009ba5..473409c 100644
--- a/examples/advanced/03_custom_renderer/CMakeLists.txt
+++ b/examples/advanced/03_custom_renderer/CMakeLists.txt
@@ -21,4 +21,5 @@ add_dependencies(03_custom_renderer format-example-sources)
 
 set_target_properties(03_custom_renderer PROPERTIES
     RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/examples/advanced/03_custom_renderer"
+    CXX_INCLUDE_WHAT_YOU_USE "${IWYU_PATH};-Xiwyu;--error;-Xiwyu;--verbose=3"
 )
diff --git a/examples/advanced/03_custom_renderer/main.cpp b/examples/advanced/03_custom_renderer/main.cpp
index 0bdfc92..02bd538 100644
--- a/examples/advanced/03_custom_renderer/main.cpp
+++ b/examples/advanced/03_custom_renderer/main.cpp
@@ -12,11 +12,16 @@
 #include <GLFW/glfw3.h>
 #include <bombfork/prong/components/button.h>
 #include <bombfork/prong/components/panel.h>
+#include <bombfork/prong/core/component.h>
 #include <bombfork/prong/core/component_builder.h>
 #include <bombfork/prong/core/scene.h>
 #include <bombfork/prong/rendering/irenderer.h>
+#include <bombfork/prong/theming/color.h>
 
+#include <functional>
 #include <iostream>
+#include <memory>
+#include <utility>
 
 using namespace bombfork::prong;
 using namespace bombfork::prong::rendering;
diff --git a/examples/advanced/04_performance/CMakeLists.txt b/examples/advanced/04_performance/CMakeLists.txt
index 94478a0..a9a7e59 100644
--- a/examples/advanced/04_performance/CMakeLists.txt
+++ b/examples/advanced/04_performance/CMakeLists.txt
@@ -21,4 +21,5 @@ add_dependencies(04_performance format-example-sources)
 
 set_target_properties(04_performance PROPERTIES
     RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/examples/advanced/04_performance"
+    CXX_INCLUDE_WHAT_YOU_USE "${IWYU_PATH};-Xiwyu;--error;-Xiwyu;--verbose=3"
 )
diff --git a/examples/advanced/04_performance/main.cpp b/examples/advanced/04_performance/main.cpp
index 76cdbfe..1feb4ce 100644
--- a/examples/advanced/04_performance/main.cpp
+++ b/examples/advanced/04_performance/main.cpp
@@ -8,12 +8,17 @@
 #include <GLFW/glfw3.h>
 #include <bombfork/prong/components/button.h>
 #include <bombfork/prong/components/panel.h>
+#include <bombfork/prong/core/component.h>
 #include <bombfork/prong/core/component_builder.h>
 #include <bombfork/prong/core/scene.h>
 #include <bombfork/prong/layout/grid_layout.h>
 
 #include <chrono>
+#include <functional>
 #include <iostream>
+#include <memory>
+#include <string>
+#include <utility>
 
 using namespace bombfork::prong;
 using namespace bombfork::prong::layout;