Set the frame visible for the materials and profiles page in

preferences.

resources/qml/Preferences/MaterialsPage.qml

@@ -364,6 +364,7 @@ Item
             }
 
             width: true ? (parent.width * 0.4) | 0 : parent.width
+            frameVisible: true
 
             ListView
             {

resources/qml/Preferences/ProfilesPage.qml

@@ -369,6 +369,7 @@ Item
             }
 
             width: true ? (parent.width * 0.4) | 0 : parent.width
+            frameVisible: true
 
             ListView
             {