simplify new expression

src/Shared/HandyControl_Shared/Controls/Other/DashedBorder.cs

@@ -134,9 +134,9 @@ namespace HandyControl.Controls
             set => SetValue(BorderDashOffsetProperty, value);
         }
 
-        private static Size ConvertThickness2Size(Thickness th) => new Size(th.Left + th.Right, th.Top + th.Bottom);
+        private static Size ConvertThickness2Size(Thickness th) => new(th.Left + th.Right, th.Top + th.Bottom);
 
-        private static Rect DeflateRect(Rect rt, Thickness thick) => new Rect(rt.Left + thick.Left,
+        private static Rect DeflateRect(Rect rt, Thickness thick) => new(rt.Left + thick.Left,
             rt.Top + thick.Top,
             Math.Max(0.0, rt.Width - thick.Left - thick.Right),
             Math.Max(0.0, rt.Height - thick.Top - thick.Bottom));

src/Shared/HandyControl_Shared/Controls/Other/Magnifier.cs

@@ -18,7 +18,7 @@ namespace HandyControl.Controls
 
         private const string ElementVisualBrush = "PART_VisualBrush";
 
-        private VisualBrush _visualBrush = new VisualBrush();
+        private VisualBrush _visualBrush = new();
 
         private readonly TranslateTransform _translateTransform;
 
@@ -40,7 +40,7 @@ namespace HandyControl.Controls
             set => SetValue(VerticalOffsetProperty, value);
         }
 
-        public static Magnifier Default => new Magnifier();
+        public static Magnifier Default => new();
 
         public static readonly DependencyProperty ScaleProperty = DependencyProperty.Register(
             "Scale", typeof(double), typeof(Magnifier), new PropertyMetadata(5.0, OnScaleChanged), ValidateHelper.IsInRangeOfPosDouble);

src/Shared/HandyControl_Shared/Controls/Other/NotifyIcon.cs

@@ -22,7 +22,7 @@ namespace HandyControl.Controls
 
         private bool _added;
 
-        private readonly object _syncObj = new object();
+        private readonly object _syncObj = new();
 
         private readonly int _id;
 
@@ -58,7 +58,7 @@ namespace HandyControl.Controls
 
         private static int NextId;
 
-        private static readonly Dictionary<string, NotifyIcon> NotifyIconDic = new Dictionary<string, NotifyIcon>();
+        private static readonly Dictionary<string, NotifyIcon> NotifyIconDic = new();
 
         static NotifyIcon()
         {

src/Shared/HandyControl_Shared/Controls/Other/Pagination.cs

@@ -383,7 +383,7 @@ namespace HandyControl.Controls
 
         private RadioButton CreateButton(int page)
         {
-            return new RadioButton
+            return new()
             {
                 Style = ResourceHelper.GetResourceInternal<Style>(ResourceToken.PaginationButtonStyle),
                 Content = page.ToString()

src/Shared/HandyControl_Shared/Controls/Other/Poptip.cs

@@ -148,7 +148,7 @@ namespace HandyControl.Controls
             set => SetValue(IsOpenProperty, ValueBoxes.BooleanBox(value));
         }
 
-        public static Poptip Default => new Poptip();
+        public static Poptip Default => new();
 
         protected sealed override void OnTargetChanged(FrameworkElement element, bool isNew)
         {