diff --git a/src/Config.h b/src/Config.h
index 8431d140..c079f5ac 100644
--- a/src/Config.h
+++ b/src/Config.h
@@ -106,7 +106,8 @@ public:
         InternalFlag_NoAeroSnap = 1, ///< Only for development. Disables Aero-snap.
         InternalFlag_DontUseParentForFloatingWindows = 2,  ///< FloatingWindows won't have a parent top-level.
         InternalFlag_DontUseQtToolWindowsForFloatingWindows = 4, ///< FloatingWindows will use Qt::Window instead of Qt::Tool.
-        InternalFlag_DontShowWhenUnfloatingHiddenWindow = 8 ///< DockWidget::setFloating(false) won't do anything if the window is hidden.
+        InternalFlag_DontShowWhenUnfloatingHiddenWindow = 8, ///< DockWidget::setFloating(false) won't do anything if the window is hidden.
+        InternalFlag_UseTransparentFloatingWindow = 16 ///< For QtQuick only. Allows to have round-corners. It's flaky when used with native Windows drop-shadow.
     };
     Q_DECLARE_FLAGS(InternalFlags, InternalFlag)
 
diff --git a/src/private/quick/FloatingWindowQuick.cpp b/src/private/quick/FloatingWindowQuick.cpp
index 725e6c67..1ceb52c5 100644
--- a/src/private/quick/FloatingWindowQuick.cpp
+++ b/src/private/quick/FloatingWindowQuick.cpp
@@ -33,7 +33,8 @@ public:
         : QQuickView(Config::self().qmlEngine(), nullptr)
         , m_floatingWindow(floatingWindow)
     {
-        setColor(QColor(Qt::transparent));
+        if (Config::self().internalFlags() & Config::InternalFlag_UseTransparentFloatingWindow)
+            setColor(QColor(Qt::transparent));
 
         updateSize();