Add comment about anchors.centerIn

qml/BasicDialog.qml

@@ -6,6 +6,7 @@ Controls.Dialog {
     modal: true
     focus: true
     parent: applicationWindow().overlay
+    //anchors.centerIn: parent // enable if requiring at least Qt 5.12 instead of setting x and y manually
     x: (parent.width - width) / 2
     y: (parent.height - height) / 2
     width: Math.min(parent.width, Kirigami.Units.gridUnit * 30)