Index: sources/gui/qml/components/SliderCreateTreatment.qml
===================================================================
diff -u -rd058eb89be720f349c507886dbd120fb7a775dfb -rc75017688e992f20dd126054abf6e639883b0303
--- sources/gui/qml/components/SliderCreateTreatment.qml	(.../SliderCreateTreatment.qml)	(revision d058eb89be720f349c507886dbd120fb7a775dfb)
+++ sources/gui/qml/components/SliderCreateTreatment.qml	(.../SliderCreateTreatment.qml)	(revision c75017688e992f20dd126054abf6e639883b0303)
@@ -35,7 +35,7 @@
     property alias  value       : _slider.value
     property alias  step        : _slider.step
 
-    property string zeroLabel   : qsTr("OFF")
+    property string zeroLabel   : ""
 
     property string unit        : ""
     property bool   active      : false
@@ -67,14 +67,10 @@
         let value = "__"
         let unit  = " " + _root.unit
         if ( _root.active ) {
-            if ( _slider.value ) {
-                value = _slider.value
+            if ( _slider.value === 0 && zeroLabel !== "" ) {
+                return _root.zeroLabel
             }
-            else {
-                if ( zeroLabel ) {
-                    return _root.zeroLabel
-                }
-            }
+            value = _slider.value
         }
         return value + unit
     }