Expose font size and add big button test

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

@@ -16,8 +16,9 @@ namespace osu.Game.Tests.Visual.UserInterface
         [Cached]
         private OverlayColourProvider colourProvider = new OverlayColourProvider(OverlayColourScheme.Green);
 
-        [Test]
+        [TestCase(false)]
-        public void TestShearedButton()
+        [TestCase(true)]
+        public void TestShearedButton(bool bigButton)
         {
             ShearedButton button = null;
             bool actionFired = false;
@@ -26,6 +27,23 @@ namespace osu.Game.Tests.Visual.UserInterface
             {
                 actionFired = false;
 
+                if (bigButton)
+                {
+                    Child = button = new ShearedButton(400)
+                    {
+                        LighterColour = Colour4.FromHex("#FFFFFF"),
+                        DarkerColour = Colour4.FromHex("#FFCC22"),
+                        TextColour = Colour4.Black,
+                        TextSize = 36,
+                        Anchor = Anchor.Centre,
+                        Origin = Anchor.Centre,
+                        Text = "Let's GO!",
+                        Height = 80,
+                        Action = () => actionFired = true,
+                    };
+                }
+                else
+                {
                     Child = button = new ShearedButton(200)
                     {
                         LighterColour = Colour4.FromHex("#FF86DD"),
@@ -37,6 +55,7 @@ namespace osu.Game.Tests.Visual.UserInterface
                         Height = 80,
                         Action = () => actionFired = true,
                     };
+                }
             });
 
             AddStep("set disabled", () => button.Enabled.Value = false);

osu.Game/Graphics/UserInterface/ShearedButton.cs

@@ -23,6 +23,12 @@ namespace osu.Game.Graphics.UserInterface
             set => text.Text = value;
         }
 
+        public float TextSize
+        {
+            get => text.Font.Size;
+            set => text.Font = OsuFont.TorusAlternate.With(size: value);
+        }
+
         public Colour4 DarkerColour
         {
             set