Index: sources/gui/qml/components/SliderDoubleCreateTreatment.qml
===================================================================
diff -u -rc71deaab48699cffdf9db816dfac2778d79c2238 -r2d09ae36f6b791e0415a87b6f14f582d4b434d7d
--- sources/gui/qml/components/SliderDoubleCreateTreatment.qml	(.../SliderDoubleCreateTreatment.qml)	(revision c71deaab48699cffdf9db816dfac2778d79c2238)
+++ sources/gui/qml/components/SliderDoubleCreateTreatment.qml	(.../SliderDoubleCreateTreatment.qml)	(revision 2d09ae36f6b791e0415a87b6f14f582d4b434d7d)
@@ -53,6 +53,26 @@
     anchors.horizontalCenter: parent.horizontalCenter
     color: "transparent";
 
+    function setLowValid(valid) {
+        if (valid) {
+            _lowTitle.color = Colors.textMain
+            _lowSelectedValue.color = Colors.textMain
+        } else {
+            _lowTitle.color = Colors.createTrInvalidParam
+            _lowSelectedValue.color = Colors.createTrInvalidParam
+        }
+    }
+
+    function setHighValid(valid) {
+        if (valid) {
+            _highTitle.color = Colors.textMain
+            _highSelectedValue.color = Colors.textMain
+        } else {
+            _highTitle.color = Colors.createTrInvalidParam
+            _highSelectedValue.color = Colors.createTrInvalidParam
+        }
+    }
+
     Text {
         id: _lowTitle
         text: "Low"
@@ -93,6 +113,7 @@
         }
         onActiveChanged: {
             if (isActive) {
+                _lowTitle.color = Colors.textMain
                 _lowSelectedValue.color = Colors.textMain
             } else {
                 _lowSelectedValue.color =  Colors.createTreatmentInactive;
@@ -146,16 +167,17 @@
 
         onActiveChanged: {
             if (isActive) {
+                _highTitle.color = Colors.textMain
                 _highSelectedValue.color = Colors.textMain
             } else {
                 _highSelectedValue.color =  Colors.createTreatmentInactive
 
             }
         }
 
-        onProgressRectClicked: setActive(true)
-        onProgressRectDragged: setActive(true)
-        onDragged: setActive(true)
-        onClicked: setActive(true)
+        onProgressRectClicked: { setActive(true); setHighValid(true); }
+        onProgressRectDragged: { setActive(true); setHighValid(true); }
+        onDragged: { setActive(true); setHighValid(true); }
+        onClicked: { setActive(true); setHighValid(true); }
     }
 }