diff --git a/resources/qml/Topbar.qml b/resources/qml/Topbar.qml
index 799942f0f6..930cc7c4bf 100644
--- a/resources/qml/Topbar.qml
+++ b/resources/qml/Topbar.qml
@@ -16,13 +16,16 @@ Rectangle
     anchors.left: parent.left
     anchors.right: parent.right
     height: UM.Theme.getSize("sidebar_header").height
-    color: "transparent"
+    color: base.monitoringPrint ? UM.Theme.getColor("topbar_background_color_monitoring") : UM.Theme.getColor("topbar_background_color")
+
+    Behavior on color { ColorAnimation { duration: 100; } }
 
     property bool printerConnected: Cura.MachineManager.printerOutputDevices.length != 0
     property bool printerAcceptsCommands: printerConnected && Cura.MachineManager.printerOutputDevices[0].acceptsCommands
     property bool monitoringPrint: false
     signal startMonitoringPrint()
     signal stopMonitoringPrint()
+
     UM.I18nCatalog
     {
         id: catalog
@@ -76,21 +79,21 @@ Rectangle
             text: catalog.i18nc("@title:tab", "Monitor")
             property string iconSource:
             {
-                if(!printerConnected)
+                if (!printerConnected)
                 {
                     return UM.Theme.getIcon("tab_status_unknown");
                 }
-                else if(!printerAcceptsCommands)
+                else if (!printerAcceptsCommands)
                 {
                     return UM.Theme.getIcon("tab_status_unknown");
                 }
 
-                if(Cura.MachineManager.printerOutputDevices[0].printerState == "maintenance")
+                if (Cura.MachineManager.printerOutputDevices[0].printerState == "maintenance")
                 {
                     return UM.Theme.getIcon("tab_status_busy");
                 }
 
-                switch(Cura.MachineManager.printerOutputDevices[0].jobState)
+                switch (Cura.MachineManager.printerOutputDevices[0].jobState)
                 {
                     case "printing":
                     case "pre_print":
@@ -121,7 +124,6 @@ Rectangle
         ExclusiveGroup { id: sidebarHeaderBarGroup }
     }
 
-
     ToolButton
     {
         id: machineSelection
@@ -142,10 +144,12 @@ Rectangle
                     if(control.pressed)
                     {
                         return UM.Theme.getColor("sidebar_header_active");
-                    } else if(control.hovered)
+                    }
+                    else if(control.hovered)
                     {
                         return UM.Theme.getColor("sidebar_header_hover");
-                    } else
+                    }
+                    else
                     {
                         return UM.Theme.getColor("sidebar_header_bar");
                     }
@@ -207,12 +211,15 @@ Rectangle
             rightMargin: UM.Theme.getSize("sidebar").width + UM.Theme.getSize("default_margin").width
         }
         style: UM.Theme.styles.combobox
+        visible: !base.monitoringPrint
 
         model: UM.ViewModel { }
         textRole: "name"
+
         onCurrentIndexChanged:
         {
             UM.Controller.setActiveView(model.getItem(currentIndex).id);
+
             // Update the active flag
             for (var i = 0; i < model.rowCount; ++i)
             {
@@ -220,6 +227,7 @@ Rectangle
                 model.getItem(i).active = is_active;
             }
         }
+
         currentIndex:
         {
             for (var i = 0; i < model.rowCount; ++i)
diff --git a/resources/themes/cura-light/theme.json b/resources/themes/cura-light/theme.json
index bbdfd0eaf8..d727425795 100644
--- a/resources/themes/cura-light/theme.json
+++ b/resources/themes/cura-light/theme.json
@@ -67,6 +67,9 @@
         "border": [127, 127, 127, 255],
         "secondary": [245, 245, 245, 255],
 
+        "topbar_background_color": [255, 255, 255, 0],
+        "topbar_background_color_monitoring": [255, 255, 255, 255],
+
         "topbar_button_text_active": [0, 0, 0, 255],
         "topbar_button_text_inactive": [128, 128, 128, 255],
         "topbar_button_text_hovered": [0, 0, 0, 255],