Use font.Size for totalHeight, update default style in TestGame, add Pressed virtual method to Button.

TestGame/Resources/default.style.toml

@@ -1,7 +1,6 @@
 [Button]
 BackgroundColor = "#0f62fe"
 TextColor = "#ffffff"
-# Padding = [0.0, 12.0, 8.0, 0.0]
 Padding = 16.0
 
 # Creates an empty rule for Button.Normal.

Voile/Source/Resources/Font.cs

@@ -104,7 +104,7 @@ public class Font : Resource, IUpdatableResource, IDisposable
             }
         }
 
-        float totalHeight = maxAscent + maxDescent;
+        float totalHeight = Size;
         return new Rect(totalWidth, totalHeight);
     }
 

Voile/Source/UI/Widgets/Button.cs

@@ -101,6 +101,8 @@ public class Button : Widget
         renderer.DrawText(_suitableFont, _text, textColor);
     }
 
+    protected virtual void Pressed() { }
+
     protected override void OnInput(UIInputContext action)
     {
         bool isHovering = ContainsPoint(action.MousePosition);
@@ -115,6 +117,7 @@ public class Button : Widget
             if (_isHeldDown && isHovering)
             {
                 _pressedAction?.Invoke();
+                Pressed();
             }
 
             _isHeldDown = false;