diff --git a/resources/qml/Menus/ConfigurationMenu/CustomConfiguration.qml b/resources/qml/Menus/ConfigurationMenu/CustomConfiguration.qml
index 72b640e94a..fe2bf34e35 100644
--- a/resources/qml/Menus/ConfigurationMenu/CustomConfiguration.qml
+++ b/resources/qml/Menus/ConfigurationMenu/CustomConfiguration.qml
@@ -90,6 +90,7 @@ Item
         radius: tabBar.visible ? UM.Theme.getSize("default_radius").width : 0
         border.width: tabBar.visible ? UM.Theme.getSize("default_lining").width : 0
         border.color: UM.Theme.getColor("lining")
+        color: UM.Theme.getColor("main_background")
 
         //Remove rounding and lining at the top.
         Rectangle
diff --git a/resources/themes/cura-dark/theme.json b/resources/themes/cura-dark/theme.json
index 078f04db1a..d9ef74ebb9 100644
--- a/resources/themes/cura-dark/theme.json
+++ b/resources/themes/cura-dark/theme.json
@@ -15,7 +15,7 @@
         "primary_hover": [48, 182, 231, 255],
         "primary_text": [255, 255, 255, 204],
         "border": [127, 127, 127, 255],
-        "secondary": [241, 242, 242, 255],
+        "secondary": [95, 95, 95, 255],
 
         "main_window_header_button_text_inactive": [128, 128, 128, 255],
         "main_window_header_button_text_hovered": [255, 255, 255, 255],