diff --git a/Sketch3D/CMakeLists.txt b/Sketch3D/CMakeLists.txt
index 248c80d..34a642c 100644
--- a/Sketch3D/CMakeLists.txt
+++ b/Sketch3D/CMakeLists.txt
@@ -19,4 +19,4 @@ add_executable(Sketch3DApp ./applications/Entry.cpp)
 target_link_libraries(Sketch3DApp ${PROJECT_NAME})
 
 file(COPY "rsc" DESTINATION "${CMAKE_BINARY_DIR}/${PROJECT_NAME}/")
-file(COPY "applications/Font.ttf" DESTINATION "${CMAKE_BINARY_DIR}/${PROJECT_NAME}/")
+file(COPY "../Graphics/rsc" DESTINATION "${CMAKE_BINARY_DIR}/${PROJECT_NAME}/")
diff --git a/Sketch3D/applications/Font.ttf b/Sketch3D/applications/Font.ttf
deleted file mode 100644
index 8a63054..0000000
Binary files a/Sketch3D/applications/Font.ttf and /dev/null differ
diff --git a/Widgets/private/RootWidget.cpp b/Widgets/private/RootWidget.cpp
index f1322a7..065794c 100644
--- a/Widgets/private/RootWidget.cpp
+++ b/Widgets/private/RootWidget.cpp
@@ -150,9 +150,11 @@ void RootWidget::openPopup(Widget* widget) {
 }
 
 void RootWidget::closePopup(Widget* widget) {
-	mPopups.removeChild(widget);
-	mUpdateManager.freeFocus(widget);
+	if (mUpdateManager.canRemoveWidget(widget)) {
+		mPopups.removeChild(widget);
+		mUpdateManager.removeWidget(widget);
+	}
 }
 
 void RootWidget::lockFocus(Widget* widget) { mUpdateManager.lockFocus(widget); }
-void RootWidget::freeFocus(Widget* widget) { mUpdateManager.freeFocus(widget); }
+void RootWidget::freeFocus(Widget* widget) { mUpdateManager.freeFocus(widget); }
\ No newline at end of file
diff --git a/Widgets/private/managers/DebugManager.cpp b/Widgets/private/managers/DebugManager.cpp
index bd0de0a..04a5738 100644
--- a/Widgets/private/managers/DebugManager.cpp
+++ b/Widgets/private/managers/DebugManager.cpp
@@ -113,8 +113,8 @@ void DebugManager::recursiveDraw(Canvas& canvas, Widget* active, const Vec2F& po
 		canvas.text((active->mDebug.id + ":" + std::to_string(depthOrder)).c_str(), area, 22, Canvas::Align::LC, 2, color);
 	}
 
-	if (active == mRootWidget->mUpdateManager.mFocusLockWidget) {
-		canvas.frame(area, { 0, 1, 0, 1 });
+	if (mRootWidget->mUpdateManager.mFocusLockStack.find(active)) {
+		canvas.frame(area, { 0, 1, 0, 0.5f });
 	}
 
 	if (active->mFlags.get(Widget::IN_FOCUS)) {
diff --git a/Widgets/private/managers/UpdateManager.cpp b/Widgets/private/managers/UpdateManager.cpp
index b269a99..5d15414 100644
--- a/Widgets/private/managers/UpdateManager.cpp
+++ b/Widgets/private/managers/UpdateManager.cpp
@@ -75,16 +75,16 @@ Widget* UpdateManager::findFocusWidget(Widget* root, EventHandler& events) {
 	mInFocusWidget = nullptr;
 	findMouseFocusWidget(root, &mInFocusWidget, events.getPointer());
 
-	if (mFocusLockWidget) {
+	if (mFocusLockStack.size()) {
 		bool hasLockedWidget = false;
 		for (auto iter = mInFocusWidget; iter; iter = iter->mParent) {
-			if (iter == mFocusLockWidget) {
+			if (iter == mFocusLockStack.last()) {
 				hasLockedWidget = true;
 				break;
 			}
 		}
 		if (!hasLockedWidget) {
-			mInFocusWidget = mFocusLockWidget;
+			mInFocusWidget = mFocusLockStack.last();
 		}
 	}
 
@@ -212,10 +212,24 @@ void UpdateManager::procWidget(Widget* widget, EventHandler& events, bool withEv
 }
 
 void UpdateManager::lockFocus(tp::Widget* widget) {
-	mFocusLockWidget = widget;
+	DEBUG_ASSERT(mFocusLockStack.find(widget) == nullptr)
+	// TODO : check that widget is a child of top of the stack
+	mFocusLockStack.pushBack(widget);
 }
 
 void UpdateManager::freeFocus(tp::Widget* widget) {
-	DEBUG_ASSERT(mFocusLockWidget == widget)
-	mFocusLockWidget = nullptr;
-}
\ No newline at end of file
+	DEBUG_ASSERT(mFocusLockStack.last() == widget)
+	mFocusLockStack.popBack();
+}
+
+bool UpdateManager::canRemoveWidget(Widget* widget) const {
+	if (auto node = mFocusLockStack.find(widget)) {
+		if (node->next) return false;
+	}
+
+	return true;
+}
+
+void UpdateManager::removeWidget(Widget* widget) {
+	freeFocus(widget);
+}
diff --git a/Widgets/private/widgets/DockWidget.cpp b/Widgets/private/widgets/DockWidget.cpp
index b75a35c..799bba7 100644
--- a/Widgets/private/widgets/DockWidget.cpp
+++ b/Widgets/private/widgets/DockWidget.cpp
@@ -86,7 +86,7 @@ void DockWidget::process(const EventHandler& events) {
 			}
 		} else if (events.isReleased(InputID::MOUSE1)) {
 			layout()->endResize();
-			freeFocus();
+			if (layout()->isResizing()) freeFocus();
 		}
 
 		if (layout()->isResizing()) {
diff --git a/Widgets/public/mangers/UpdateManager.hpp b/Widgets/public/mangers/UpdateManager.hpp
index f97ba62..2a8f661 100644
--- a/Widgets/public/mangers/UpdateManager.hpp
+++ b/Widgets/public/mangers/UpdateManager.hpp
@@ -35,13 +35,16 @@ namespace tp {
 
 		Widget* getFocusWidget() { return mInFocusWidget; }
 
+		bool canRemoveWidget(Widget* widget) const;
+		void removeWidget(Widget* widget);
+
 	private:
 		static void procWidget(Widget* widget, EventHandler& events, bool withEvents = false);
 
 	private:
 		std::map<Widget*, bool> mTriggeredWidgets;
 		Widget* mInFocusWidget = nullptr;
-		Widget* mFocusLockWidget = nullptr;
+		List<Widget*> mFocusLockStack;
 
 	private:
 		int mDebugWidgetsToProcess = 0;