Fix the indentation

src/Avalonia.Controls/Presenters/TextPresenter.cs

@@ -20,10 +20,10 @@ namespace Avalonia.Controls.Presenters
             AvaloniaProperty.Register<TextPresenter, char>(nameof(PasswordChar));
 
         public static readonly StyledProperty<IBrush> SelectionBrushProperty =
-           AvaloniaProperty.Register<TextPresenter, IBrush>(nameof(SelectionBrushProperty));
+            AvaloniaProperty.Register<TextPresenter, IBrush>(nameof(SelectionBrushProperty));
 
         public static readonly StyledProperty<IBrush> SelectionForegroundBrushProperty =
-        AvaloniaProperty.Register<TextPresenter, IBrush>(nameof(SelectionForegroundBrushProperty));
+            AvaloniaProperty.Register<TextPresenter, IBrush>(nameof(SelectionForegroundBrushProperty));
 
         public static readonly DirectProperty<TextPresenter, int> SelectionStartProperty =
             TextBox.SelectionStartProperty.AddOwner<TextPresenter>(

src/Avalonia.Controls/TextBox.cs

@@ -39,10 +39,10 @@ namespace Avalonia.Controls
             AvaloniaProperty.Register<TextBox, char>(nameof(PasswordChar));
 
         public static readonly StyledProperty<IBrush> SelectionBrushProperty =
-           AvaloniaProperty.Register<TextBox, IBrush>(nameof(SelectionBrushProperty));
+            AvaloniaProperty.Register<TextBox, IBrush>(nameof(SelectionBrushProperty));
 
         public static readonly StyledProperty<IBrush> SelectionForegroundBrushProperty =
-        AvaloniaProperty.Register<TextBox, IBrush>(nameof(SelectionForegroundBrushProperty));
+            AvaloniaProperty.Register<TextBox, IBrush>(nameof(SelectionForegroundBrushProperty));
 
         public static readonly DirectProperty<TextBox, int> SelectionStartProperty =
             AvaloniaProperty.RegisterDirect<TextBox, int>(