diff --git a/external/scons-plus-plus b/external/scons-plus-plus
index a7c736d..0a29b41 160000
--- a/external/scons-plus-plus
+++ b/external/scons-plus-plus
@@ -1 +1 @@
-Subproject commit a7c736de56b438d2e47b074fc1b06d05cd7a0c35
+Subproject commit 0a29b416391359a84cb847f57fc391da71a8e3cb
diff --git a/private/sdl_gpu_test/gui/button.cpp b/private/sdl_gpu_test/gui/button.cpp
index 156ee3e..1392eef 100644
--- a/private/sdl_gpu_test/gui/button.cpp
+++ b/private/sdl_gpu_test/gui/button.cpp
@@ -106,12 +106,14 @@ void Button::handleMouseMotion(const sdlpp::MouseMotionEvent& event)
     }
 }
 
-void Button::handleMouseButton(const sdlpp::MouseButtonEvent&)
+EventResponse Button::handleMouseButton(const sdlpp::MouseButtonEvent&)
 {
     if (mHovered)
     {
         clicked.emit();
+        return EventResponse::HANDLED;
     }
+    return EventResponse::UNHANDLED;
 }
 
 void Button::revalidate()
diff --git a/private/sdl_gpu_test/gui/button.hpp b/private/sdl_gpu_test/gui/button.hpp
index 8f862a5..185b316 100644
--- a/private/sdl_gpu_test/gui/button.hpp
+++ b/private/sdl_gpu_test/gui/button.hpp
@@ -76,7 +76,7 @@ public:
 
     void handleEnteredTree() override;
     void handleMouseMotion(const sdlpp::MouseMotionEvent& event) override;
-    void handleMouseButton(const sdlpp::MouseButtonEvent&) override;
+    EventResponse handleMouseButton(const sdlpp::MouseButtonEvent&) override;
     void revalidate() override;
 private:
     void update();
diff --git a/private/sdl_gpu_test/gui/widget.cpp b/private/sdl_gpu_test/gui/widget.cpp
index a929777..70cb287 100644
--- a/private/sdl_gpu_test/gui/widget.cpp
+++ b/private/sdl_gpu_test/gui/widget.cpp
@@ -39,12 +39,16 @@ void ParentWidget::handleMouseMotion(const sdlpp::MouseMotionEvent& event)
     }
 }
 
-void ParentWidget::handleMouseButton(const sdlpp::MouseButtonEvent& event)
+EventResponse ParentWidget::handleMouseButton(const sdlpp::MouseButtonEvent& event)
 {
     for (widget_ptr_t& child : mChildren)
     {
-        child->handleMouseButton(event);
+        if (const EventResponse response = child->handleMouseButton(event); response == EventResponse::HANDLED)
+        {
+            return EventResponse::HANDLED;
+        }
     }
+    return EventResponse::UNHANDLED;
 }
 
 Widget* ParentWidget::addChild(widget_ptr_t&& child)
@@ -81,9 +85,9 @@ void WidgetTree::notifyMouseMoved(const sdlpp::MouseMotionEvent& event)
     mRootWidget.handleMouseMotion(event);
 }
 
-void WidgetTree::notifyMouseButton(const sdlpp::MouseButtonEvent& event)
+EventResponse WidgetTree::notifyMouseButton(const sdlpp::MouseButtonEvent& event)
 {
-    mRootWidget.handleMouseButton(event);
+    return mRootWidget.handleMouseButton(event);
 }
 
 void WidgetTree::invalidateWidget(Widget* widget) noexcept
diff --git a/private/sdl_gpu_test/gui/widget.hpp b/private/sdl_gpu_test/gui/widget.hpp
index 36eb989..1816736 100644
--- a/private/sdl_gpu_test/gui/widget.hpp
+++ b/private/sdl_gpu_test/gui/widget.hpp
@@ -13,6 +13,12 @@
 
 namespace sdl_gpu_test
 {
+enum class EventResponse
+{
+    UNHANDLED,
+    HANDLED
+};
+
 class Widget
 {
 protected:
@@ -23,7 +29,7 @@ public:
 
     virtual void handleEnteredTree() {}
     virtual void handleMouseMotion(const sdlpp::MouseMotionEvent& /* event */) {}
-    virtual void handleMouseButton(const sdlpp::MouseButtonEvent& /* event */) {}
+    virtual EventResponse handleMouseButton(const sdlpp::MouseButtonEvent& /* event */) { return EventResponse::UNHANDLED; }
 
     virtual void revalidate() {}
 
@@ -43,7 +49,7 @@ private:
 public:
     void handleEnteredTree() override;
     void handleMouseMotion(const sdlpp::MouseMotionEvent& event) override;
-    void handleMouseButton(const sdlpp::MouseButtonEvent&) override;
+    EventResponse handleMouseButton(const sdlpp::MouseButtonEvent& event) override;
 
     Widget* addChild(widget_ptr_t&& child);
 
@@ -76,7 +82,7 @@ public:
     ParentWidget& getRootWidget() noexcept { return mRootWidget; }
 
     void notifyMouseMoved(const sdlpp::MouseMotionEvent& event);
-    void notifyMouseButton(const sdlpp::MouseButtonEvent& event);
+    EventResponse notifyMouseButton(const sdlpp::MouseButtonEvent& event);
 
     void invalidateWidget(Widget* widget) noexcept;
 };
diff --git a/private/texture_packer/SModule b/private/texture_packer/SModule
index a8e1a59..56da7b2 100644
--- a/private/texture_packer/SModule
+++ b/private/texture_packer/SModule
@@ -33,7 +33,7 @@ def _pack_textures(env, target: str, source: 'list[str]'):
         source = source,
         action = f'{_exe_name()} $TARGET $SOURCES'
     )
-    # env.Depends(cmd, prog_packer)
+    env.Depends(cmd, prog_packer)
     return cmd
 env.AddMethod(_pack_textures, 'PackTextures')