diff --git a/Bin/SunnyUI.dll b/Bin/SunnyUI.dll
index 76b6c064..a4c19b8b 100644
Binary files a/Bin/SunnyUI.dll and b/Bin/SunnyUI.dll differ
diff --git a/SunnyUI/Charts/UIBarChartEx.cs b/SunnyUI/Charts/UIBarChartEx.cs
index 7fac6397..ec3213bc 100644
--- a/SunnyUI/Charts/UIBarChartEx.cs
+++ b/SunnyUI/Charts/UIBarChartEx.cs
@@ -584,7 +584,7 @@ namespace Sunny.UI
                         float w = DrawSize.Width * data.Data.Count * 1.0f / DataCount;
                         SizeF sf = g.MeasureString(data.Name, SubFont);
                         if (Option.XAxis.AxisLabel.Angle != 0)
-                            g.DrawString(data.Name, SubFont, ChartStyle.ForeColor, new PointF(start + w / 2.0f - sf.Width / 2.0f, DrawOrigin.Y + Option.Grid.Bottom / 2.0f),
+                            g.DrawString(data.Name, SubFont, ChartStyle.ForeColor, new PointF(start + w / 2.0f - 10, DrawOrigin.Y + Option.Grid.Bottom / 2.0f),
                                 new StringFormat() { Alignment = StringAlignment.Center }, (3600 - Option.XAxis.AxisLabel.Angle) % 360);
                         else
                             g.DrawString(data.Name, SubFont, ChartStyle.ForeColor, start + w / 2.0f - sf.Width / 2.0f, DrawOrigin.Y + Option.XAxis.AxisTick.Length + Option.XAxis.AxisTick.Distance);
@@ -598,7 +598,7 @@ namespace Sunny.UI
                     {
                         SizeF sf = g.MeasureString(data.Name, SubFont);
                         if (Option.XAxis.AxisLabel.Angle != 0)
-                            g.DrawString(data.Name, SubFont, ChartStyle.ForeColor, new PointF(start - sf.Width / 2.0f, DrawOrigin.Y + Option.Grid.Bottom / 2.0f),
+                            g.DrawString(data.Name, SubFont, ChartStyle.ForeColor, new PointF(start - 10, DrawOrigin.Y + Option.Grid.Bottom / 2.0f),
                             new StringFormat() { Alignment = StringAlignment.Center }, (3600 - Option.XAxis.AxisLabel.Angle) % 360);
                         else
                             g.DrawString(data.Name, SubFont, ChartStyle.ForeColor, start - sf.Width / 2.0f, DrawOrigin.Y + Option.XAxis.AxisTick.Length + Option.XAxis.AxisTick.Distance);
diff --git a/SunnyUI/Controls/UICheckBox.cs b/SunnyUI/Controls/UICheckBox.cs
index e1021e1d..37ce10d1 100644
--- a/SunnyUI/Controls/UICheckBox.cs
+++ b/SunnyUI/Controls/UICheckBox.cs
@@ -32,7 +32,7 @@ namespace Sunny.UI
     [DefaultEvent("ValueChanged")]
     [DefaultProperty("Text")]
     [ToolboxItem(true)]
-    public sealed class UICheckBox : UIControl
+    public class UICheckBox : UIControl
     {
         public UICheckBox()
         {
diff --git a/SunnyUI/Controls/UISymbolButton.cs b/SunnyUI/Controls/UISymbolButton.cs
index 9b95dbb5..7f7e28c9 100644
--- a/SunnyUI/Controls/UISymbolButton.cs
+++ b/SunnyUI/Controls/UISymbolButton.cs
@@ -31,7 +31,7 @@ namespace Sunny.UI
 {
     [DefaultEvent("Click")]
     [DefaultProperty("Text")]
-    public sealed class UISymbolButton : UIButton
+    public class UISymbolButton : UIButton
     {
         private int _symbolSize = 24;
         private int _imageInterval = 2;