Index: sources/gui/qml/components/ModalDialog.qml
===================================================================
diff -u -r23f8a6036e22f80c3c5fd2834a2980bb62d2a34d -rd70b0372a4457f36abedd3034f237d6e0cafa111
--- sources/gui/qml/components/ModalDialog.qml	(.../ModalDialog.qml)	(revision 23f8a6036e22f80c3c5fd2834a2980bb62d2a34d)
+++ sources/gui/qml/components/ModalDialog.qml	(.../ModalDialog.qml)	(revision d70b0372a4457f36abedd3034f237d6e0cafa111)
@@ -49,8 +49,10 @@
 
     closePolicy: Dialog.NoAutoClose
     Overlay.modal : Rectangle { id : _borderRect
-        anchors.fill: parent
-        color: Colors.borderDialog
+        anchors.fill    : parent
+        color           : "#B3000000"
+
+        Behavior on opacity { NumberAnimation { duration: 300} }
     }
 
     background: Rectangle { id: _backgroundRect
@@ -62,7 +64,6 @@
         if (autoHide && visible) {
             _autoHideAnimation.start()
         }
-        dimBackground.visible = _root.visible
     }
 
     NumberAnimation { id: _autoHideAnimation