diff --git a/src/Gui/PreferencePacks/FreeCAD Dark/FreeCAD Dark.cfg b/src/Gui/PreferencePacks/FreeCAD Dark/FreeCAD Dark.cfg
index d6d05925ee..a845d4f580 100644
--- a/src/Gui/PreferencePacks/FreeCAD Dark/FreeCAD Dark.cfg	
+++ b/src/Gui/PreferencePacks/FreeCAD Dark/FreeCAD Dark.cfg	
@@ -168,7 +168,7 @@
         <FCParamGroup Name="TreeView">
           <FCInt Name="FontSize" Value="11"/>
           <FCInt Name="ItemBackgroundPadding" Value="11"/>
-          <FCUInt Name="TreeActiveColor" Value="556083711"/>
+          <FCUInt Name="TreeActiveColor" Value="899696639"/>
           <FCUInt Name="TreeEditColor" Value="1434171135"/>
         </FCParamGroup>
         <FCParamGroup Name="View">
diff --git a/src/Gui/Stylesheets/FreeCAD.qss b/src/Gui/Stylesheets/FreeCAD.qss
index 2b665fd32e..3ea2f60422 100644
--- a/src/Gui/Stylesheets/FreeCAD.qss
+++ b/src/Gui/Stylesheets/FreeCAD.qss
@@ -1785,8 +1785,14 @@ QTabBar#mdiAreaTabBar::tab:bottom:selected {
   border-top: @3DViewBackgroundRefColor;
 }
 
-QTabBar {
+/*tabbar for files. */
+QTabBar#mdiAreaTabBar {
   qproperty-drawBase: 1;/*tabbar for files. */
+  background-color: @PrimaryColor;
+}
+
+QTabBar {
+  qproperty-drawBase: 0;/*tabbar for files. */
 }
 
 QTabWidget::tab-bar {