M src/platform/qt/LoadSaveState.cpp → src/platform/qt/LoadSaveState.cpp

@@ -26,6 +26,7 @@ , m_controller(controller)
 	, m_currentFocus(controller->stateSlot() - 1)
 	, m_mode(LoadSave::LOAD)
 {
+	setAttribute(Qt::WA_TranslucentBackground);
 	m_ui.setupUi(this);
 
 	m_slots[0] = m_ui.state1;
@@ -208,6 +209,5 @@
 void LoadSaveState::paintEvent(QPaintEvent*) {
 	QPainter painter(this);
 	QRect full(QPoint(), size());
-	painter.drawPixmap(full, m_currentImage);
 	painter.fillRect(full, QColor(0, 0, 0, 128));
 }

M src/platform/qt/SavestateButton.cpp → src/platform/qt/SavestateButton.cpp

@@ -13,7 +13,7 @@
 SavestateButton::SavestateButton(QWidget* parent)
 	: QAbstractButton(parent)
 {
-	// Nothing to do
+	setAttribute(Qt::WA_TranslucentBackground);
 }
 
 void SavestateButton::paintEvent(QPaintEvent*) {

M src/platform/qt/Window.cpp → src/platform/qt/Window.cpp

@@ -685,7 +685,7 @@ m_stateWindow = new LoadSaveState(m_controller);
 	connect(this, SIGNAL(shutdown()), m_stateWindow, SLOT(close()));
 	connect(m_controller, SIGNAL(gameStopped(GBAThread*)), m_stateWindow, SLOT(close()));
 	connect(m_stateWindow, &LoadSaveState::closed, [this]() {
-		m_screenWidget->layout()->removeWidget(m_stateWindow);
+		detachWidget(m_stateWindow);
 		m_stateWindow = nullptr;
 		QMetaObject::invokeMethod(this, "setFocus", Qt::QueuedConnection);
 	});