Index: sources/gui/qml/components/RangeBar.qml
===================================================================
diff -u -rfbce67a31ae4e294f0c609bbf6d3bf6659354a8d -r2ef03b2ce51b4dc507f66e9671953a8e0824bde9
--- sources/gui/qml/components/RangeBar.qml	(.../RangeBar.qml)	(revision fbce67a31ae4e294f0c609bbf6d3bf6659354a8d)
+++ sources/gui/qml/components/RangeBar.qml	(.../RangeBar.qml)	(revision 2ef03b2ce51b4dc507f66e9671953a8e0824bde9)
@@ -1,13 +1,13 @@
 /*!
  *
- * Copyright (c) 2020-2023 Diality Inc. - All Rights Reserved.
+ * Copyright (c) 2020-2024 Diality Inc. - All Rights Reserved.
  * \copyright
  * THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN
  * WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
  *
  * \file    RangeBar.qml
  * \author  (last)      Behrouz NematiPour
- * \date    (last)      06-May-2021
+ * \date    (last)      13-Sep-2023
  * \author  (original)  Behrouz NematiPour
  * \date    (original)  27-Jan-2020
  *
@@ -32,9 +32,18 @@
 
     property alias  rangebar    : _rangeRect
 
+    QtObject { id: _private
+        property int  val           : isOutLower ? min : isOutUpper ? max : value
+        property int  min           : minimum
+        property int  max           : maximum
+        property bool isOutLower    : value < min
+        property bool isOutUpper    : value > max
+        property bool isOutRange    : isOutLower || isOutUpper
+    }
+
     property int    markerHeight: Variables.rangeMarkerHeightMidle
-    property color  markerColor : markerOutRangeNotify ? (value >= lowerBound && value <= upperBound ? Colors.rangeMarker : Colors.red) : Colors.rangeMarker
-    property bool   markerOutRangeNotify: false
+    property color  markerColor : markerOutRangeNotify ? ( _private.isOutRange ? Colors.red : Colors.rangeMarker) : Colors.rangeMarker
+    property bool   markerOutRangeNotify: true
 
     property bool   markerVisible       : true
     property int    markerBoundHeight   : Variables.rangeMarkerHeightShort
@@ -83,7 +92,7 @@
         visible: _root.markerVisible
         decimal: _root.decimal
         value   : parent.value
-        x       : ((parent.width * (parent.value - minimum)) / (maximum - minimum))
+        x       : ((parent.width * (_private.val - _private.min)) / (_private.max - _private.min))
         text.visible: true
         text.font.pixelSize: _root.markerFontSize
         hasHandle   : true