Index: sources/gui/qml/components/Slider.qml
===================================================================
diff -u -re43e7099f7030edaa196cda5391262b3493fc4c6 -rb07e8c91cabe64f9bc29b3653d27083b5cf96cb5
--- sources/gui/qml/components/Slider.qml	(.../Slider.qml)	(revision e43e7099f7030edaa196cda5391262b3493fc4c6)
+++ sources/gui/qml/components/Slider.qml	(.../Slider.qml)	(revision b07e8c91cabe64f9bc29b3653d27083b5cf96cb5)
@@ -231,6 +231,7 @@
             lineTickMarkThickness   : _root.tickMarksThickness
             isTickMarkRound : _root.isRoundedEnds
             yDisplacement   : _root.isRoundedEnds ? (-_handler.height/2 - _handler.border.width/2) : 0
+            color: _root.isActive ? Colors.borderButton : Colors.borderDisableButton
         }
     }