Combine constant

osu.Game/Screens/OsuScreen.cs

@@ -23,6 +23,12 @@ namespace osu.Game.Screens
 {
     public abstract class OsuScreen : Screen, IKeyBindingHandler<GlobalAction>, IHasDescription
     {
+        /// <summary>
+        /// The amount of negative padding that should be applied to game background content which touches both the left and right sides of the screen.
+        /// This allows for the game content to be pushed byt he options/notification overlays without causing black areas to appear.
+        /// </summary>
+        public const float HORIZONTAL_OVERFLOW_PADDING = 50;
+
         public BackgroundScreen Background { get; private set; }
 
         /// <summary>