Fix some namespaces.

osu.Game/Graphics/Backgrounds/Background.cs

@@ -0,0 +1,48 @@
+//Copyright (c) 2007-2016 ppy Pty Ltd <contact@ppy.sh>.
+//Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using System;
+using osu.Framework.Allocation;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Sprites;
+using osu.Framework.Graphics.Textures;
+using OpenTK;
+using OpenTK.Graphics;
+
+namespace osu.Game.Graphics.Backgrounds
+{
+    public class Background : BufferedContainer
+    {
+        public Sprite Sprite;
+
+        string textureName;
+
+        public Background(string textureName = @"")
+        {
+            this.textureName = textureName;
+            RelativeSizeAxes = Axes.Both;
+            Depth = float.MinValue;
+
+            Add(Sprite = new Sprite
+            {
+                Anchor = Anchor.Centre,
+                Origin = Anchor.Centre,
+                Colour = Color4.DarkGray
+            });
+        }
+
+        [BackgroundDependencyLoader]
+        private void load(TextureStore textures)
+        {
+            if (!string.IsNullOrEmpty(textureName))
+                Sprite.Texture = textures.Get(textureName);
+        }
+
+        protected override void Update()
+        {
+            base.Update();
+            Sprite.Scale = new Vector2(Math.Max(DrawSize.X / Sprite.DrawSize.X, DrawSize.Y / Sprite.DrawSize.Y));
+        }
+    }
+}