Rearrange things somewhat

osu.Game/Graphics/UserInterface/OsuTabDropDownMenuItem.cs

@@ -0,0 +1,52 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using osu.Framework.Allocation;
+using osu.Framework.Extensions.Color4Extensions;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Primitives;
+using osu.Framework.Graphics.UserInterface;
+using osu.Game.Graphics;
+using OpenTK.Graphics;
+using osu.Game.Graphics.Sprites;
+using osu.Game.Screens.Select.Filter;
+
+namespace osu.Game.Graphics.UserInterface
+{
+    public class OsuTabDropDownMenuItem<T> : DropDownMenuItem<T>
+    {
+        public OsuTabDropDownMenuItem(string text, T value) : base(text, value)
+        {
+            Foreground.Padding = new MarginPadding { Top = 4, Bottom = 4 };
+            Foreground.Margin = new MarginPadding { Left = 7 };
+
+            Masking = true;
+            CornerRadius = 6;
+            Foreground.Add(new OsuSpriteText
+            {
+                Text = text,
+                Origin = Anchor.CentreLeft,
+                Anchor = Anchor.CentreLeft,
+            });
+        }
+
+        [BackgroundDependencyLoader]
+        private void load(OsuColour colours)
+        {
+            BackgroundColour = Color4.Black.Opacity(0f);
+            ForegroundColourHover = Color4.Black;
+            ForegroundColourSelected = Color4.Black;
+
+            if (typeof(T) == typeof(SortMode))
+            {
+                BackgroundColourHover = colours.GreenLight;
+                BackgroundColourSelected = colours.GreenLight;
+            }
+            else
+            {
+                BackgroundColourHover = colours.Blue;
+                BackgroundColourSelected = colours.Blue;
+            }
+        }
+    }
+}