Moved FontSize to Control.

Perspex/Controls/Control.cs

@@ -44,6 +44,12 @@ namespace Perspex.Controls
         public static readonly PerspexProperty<double> BorderThicknessProperty =
             PerspexProperty.Register<Control, double>("BorderThickness");
 
+        public static readonly PerspexProperty<double> FontSizeProperty =
+            PerspexProperty.Register<Control, double>(
+                "FontSize",
+                defaultValue: 12.0,
+                inherits: true);
+
         public static readonly PerspexProperty<Brush> ForegroundProperty =
             PerspexProperty.Register<Control, Brush>("Foreground", new SolidColorBrush(0xff000000), true);
 
@@ -195,6 +201,12 @@ namespace Perspex.Controls
             set;
         }
 
+        public double FontSize
+        {
+            get { return this.GetValue(FontSizeProperty); }
+            set { this.SetValue(FontSizeProperty, value); }
+        }
+
         public Brush Foreground
         {
             get { return this.GetValue(ForegroundProperty); }

Perspex/Controls/TextBlock.cs

@@ -13,12 +13,6 @@ namespace Perspex.Controls
 
     public class TextBlock : Control
     {
-        public static readonly PerspexProperty<double> FontSizeProperty =
-            PerspexProperty.Register<TextBlock, double>(
-                "FontSize",
-                defaultValue: 12.0,
-                inherits: true);
-
         public static readonly PerspexProperty<string> TextProperty =
             PerspexProperty.Register<TextBlock, string>("Text");
 
@@ -27,12 +21,6 @@ namespace Perspex.Controls
             this.GetObservable(TextProperty).Subscribe(_ => this.InvalidateVisual());
         }
 
-        public double FontSize
-        {
-            get { return this.GetValue(FontSizeProperty); }
-            set { this.SetValue(FontSizeProperty, value); }
-        }
-
         public string Text
         {
             get { return this.GetValue(TextProperty); }