Hide HUD elements during break time by default

osu.Game/Configuration/HUDVisibilityMode.cs

@@ -0,0 +1,17 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System.ComponentModel;
+
+namespace osu.Game.Configuration
+{
+    public enum HUDVisibilityMode
+    {
+        Never,
+
+        [Description("Hide during breaks")]
+        DuringGameplay,
+
+        Always
+    }
+}