Add ability to override text size

osu.Game.Tests/Visual/UserInterface/TestSceneBeatmapSearchFilter.cs

@@ -37,6 +37,7 @@ namespace osu.Game.Tests.Visual.UserInterface
                 {
                     new BeatmapSearchRulesetFilter(),
                     new BeatmapSearchFilter<BeatmapSearchCategory>(),
+                    new SmallBeatmapSearchFilter<BeatmapSearchCategory>()
                 }
             });
         }

osu.Game/Overlays/BeatmapListing/BeatmapSearchFilter.cs

@@ -40,6 +40,8 @@ namespace osu.Game.Overlays.BeatmapListing
 
         protected class FilterTabItem : TabItem<T>
         {
+            protected virtual float TextSize() => 13;
+
             [Resolved]
             private OverlayColourProvider colourProvider { get; set; }
 
@@ -53,7 +55,7 @@ namespace osu.Game.Overlays.BeatmapListing
                 {
                     text = new OsuSpriteText
                     {
-                        Font = OsuFont.GetFont(size: 13, weight: FontWeight.Regular),
+                        Font = OsuFont.GetFont(size: TextSize(), weight: FontWeight.Regular),
                         Text = GetText(value)
                     },
                     new HoverClickSounds()

osu.Game/Overlays/BeatmapListing/SmallBeatmapSearchFilter.cs

@@ -0,0 +1,22 @@
+// 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 osu.Framework.Graphics.UserInterface;
+
+namespace osu.Game.Overlays.BeatmapListing
+{
+    public class SmallBeatmapSearchFilter<T> : BeatmapSearchFilter<T>
+    {
+        protected override TabItem<T> CreateTabItem(T value) => new SmallTabItem(value);
+
+        protected class SmallTabItem : FilterTabItem
+        {
+            public SmallTabItem(T value)
+                : base(value)
+            {
+            }
+
+            protected override float TextSize() => 10;
+        }
+    }
+}