Index: sources/gui/qml/components/ModalDialog.qml
===================================================================
diff -u -r7fb13d9e1a453a37ab4dea5536e0f19ed6e272d2 -r3e682c5afdadcf4dd2006e3d975fbee58e48619e
--- sources/gui/qml/components/ModalDialog.qml	(.../ModalDialog.qml)	(revision 7fb13d9e1a453a37ab4dea5536e0f19ed6e272d2)
+++ sources/gui/qml/components/ModalDialog.qml	(.../ModalDialog.qml)	(revision 3e682c5afdadcf4dd2006e3d975fbee58e48619e)
@@ -16,7 +16,7 @@
 // Qt
 import QtQuick 2.12
 import QtQuick.Controls 2.12 // Dialog
-import QtGraphicalEffects 1.12
+import QtQuick.Effects
 
 // Project
 //  Qml imports
@@ -67,14 +67,10 @@
         radius          : Variables.dialogRadius
 
         layer.enabled   : showDropShadow
-        layer.effect: DropShadow {
+        layer.effect: RectangularShadow {
             id: _dropShadow
-            horizontalOffset: 4
-            verticalOffset  : 4
             radius          : 12
-            samples         : 32
             color           : Colors.dropShadowDialogColor
-            source          : _backgroundRect
             anchors.fill    : _backgroundRect
         }