diff --git a/Bin/net40/SunnyUI.Demo.exe b/Bin/net40/SunnyUI.Demo.exe
index e20e220c..ee06ac97 100644
Binary files a/Bin/net40/SunnyUI.Demo.exe and b/Bin/net40/SunnyUI.Demo.exe differ
diff --git a/Bin/net40/SunnyUI.dll b/Bin/net40/SunnyUI.dll
index 3ba7824e..57875d4e 100644
Binary files a/Bin/net40/SunnyUI.dll and b/Bin/net40/SunnyUI.dll differ
diff --git a/Bin/net5.0-windows/SunnyUI.dll b/Bin/net5.0-windows/SunnyUI.dll
index 6d0ee775..2c71bc09 100644
Binary files a/Bin/net5.0-windows/SunnyUI.dll and b/Bin/net5.0-windows/SunnyUI.dll differ
diff --git a/Bin/net5.0-windows/ref/SunnyUI.dll b/Bin/net5.0-windows/ref/SunnyUI.dll
index a9503ece..e006f053 100644
Binary files a/Bin/net5.0-windows/ref/SunnyUI.dll and b/Bin/net5.0-windows/ref/SunnyUI.dll differ
diff --git a/Bin/netcoreapp3.1/SunnyUI.dll b/Bin/netcoreapp3.1/SunnyUI.dll
index bb7b9b3d..10f70501 100644
Binary files a/Bin/netcoreapp3.1/SunnyUI.dll and b/Bin/netcoreapp3.1/SunnyUI.dll differ
diff --git a/SunnyUI.Demo/FMain.Designer.cs b/SunnyUI.Demo/FMain.Designer.cs
index f18710e5..2b8279fa 100644
--- a/SunnyUI.Demo/FMain.Designer.cs
+++ b/SunnyUI.Demo/FMain.Designer.cs
@@ -29,10 +29,10 @@
         private void InitializeComponent()
         {
             this.components = new System.ComponentModel.Container();
-            System.Windows.Forms.TreeNode treeNode5 = new System.Windows.Forms.TreeNode("控件");
-            System.Windows.Forms.TreeNode treeNode6 = new System.Windows.Forms.TreeNode("窗体");
-            System.Windows.Forms.TreeNode treeNode7 = new System.Windows.Forms.TreeNode("图表");
-            System.Windows.Forms.TreeNode treeNode8 = new System.Windows.Forms.TreeNode("主题");
+            System.Windows.Forms.TreeNode treeNode9 = new System.Windows.Forms.TreeNode("控件");
+            System.Windows.Forms.TreeNode treeNode10 = new System.Windows.Forms.TreeNode("窗体");
+            System.Windows.Forms.TreeNode treeNode11 = new System.Windows.Forms.TreeNode("图表");
+            System.Windows.Forms.TreeNode treeNode12 = new System.Windows.Forms.TreeNode("主题");
             System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(FMain));
             this.uiLogo1 = new Sunny.UI.UILogo();
             this.uiAvatar = new Sunny.UI.UIAvatar();
@@ -46,13 +46,11 @@
             // 
             // Aside
             // 
-            this.Aside.ExpandSelectFirst = false;
             this.Aside.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(240)))), ((int)(((byte)(240)))), ((int)(((byte)(240)))));
             this.Aside.ItemHeight = 36;
             this.Aside.LineColor = System.Drawing.Color.Black;
             this.Aside.Location = new System.Drawing.Point(2, 145);
             this.Aside.MenuStyle = Sunny.UI.UIMenuStyle.Black;
-            this.Aside.SecondBackColor = System.Drawing.Color.FromArgb(((int)(((byte)(66)))), ((int)(((byte)(66)))), ((int)(((byte)(66)))));
             this.Aside.ShowOneNode = true;
             this.Aside.ShowSecondBackColor = true;
             this.Aside.ShowTips = true;
@@ -65,20 +63,20 @@
             this.Header.Controls.Add(this.uiAvatar);
             this.Header.Controls.Add(this.uiLogo1);
             this.Header.Location = new System.Drawing.Point(2, 35);
-            treeNode5.ImageIndex = 1;
-            treeNode5.Name = "节点0";
-            treeNode5.Text = "控件";
-            treeNode6.Name = "节点1";
-            treeNode6.Text = "窗体";
-            treeNode7.Name = "节点2";
-            treeNode7.Text = "图表";
-            treeNode8.Name = "节点2";
-            treeNode8.Text = "主题";
+            treeNode9.ImageIndex = 1;
+            treeNode9.Name = "节点0";
+            treeNode9.Text = "控件";
+            treeNode10.Name = "节点1";
+            treeNode10.Text = "窗体";
+            treeNode11.Name = "节点2";
+            treeNode11.Text = "图表";
+            treeNode12.Name = "节点2";
+            treeNode12.Text = "主题";
             this.Header.Nodes.AddRange(new System.Windows.Forms.TreeNode[] {
-            treeNode5,
-            treeNode6,
-            treeNode7,
-            treeNode8});
+            treeNode9,
+            treeNode10,
+            treeNode11,
+            treeNode12});
             this.Header.SelectedIndex = 0;
             this.Header.Size = new System.Drawing.Size(1020, 110);
             this.Header.Style = Sunny.UI.UIStyle.Custom;
diff --git a/SunnyUI.Net5.Demo/FMain.Designer.cs b/SunnyUI.Net5.Demo/FMain.Designer.cs
index a7e412b4..4ea74a63 100644
--- a/SunnyUI.Net5.Demo/FMain.Designer.cs
+++ b/SunnyUI.Net5.Demo/FMain.Designer.cs
@@ -29,10 +29,10 @@
         private void InitializeComponent()
         {
             this.components = new System.ComponentModel.Container();
-            System.Windows.Forms.TreeNode treeNode1 = new System.Windows.Forms.TreeNode("控件");
-            System.Windows.Forms.TreeNode treeNode2 = new System.Windows.Forms.TreeNode("窗体");
-            System.Windows.Forms.TreeNode treeNode3 = new System.Windows.Forms.TreeNode("图表");
-            System.Windows.Forms.TreeNode treeNode4 = new System.Windows.Forms.TreeNode("主题");
+            System.Windows.Forms.TreeNode treeNode5 = new System.Windows.Forms.TreeNode("控件");
+            System.Windows.Forms.TreeNode treeNode6 = new System.Windows.Forms.TreeNode("窗体");
+            System.Windows.Forms.TreeNode treeNode7 = new System.Windows.Forms.TreeNode("图表");
+            System.Windows.Forms.TreeNode treeNode8 = new System.Windows.Forms.TreeNode("主题");
             System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(FMain));
             this.uiLogo1 = new Sunny.UI.UILogo();
             this.uiAvatar = new Sunny.UI.UIAvatar();
@@ -47,7 +47,6 @@
             this.Aside.LineColor = System.Drawing.Color.Black;
             this.Aside.Location = new System.Drawing.Point(2, 145);
             this.Aside.MenuStyle = Sunny.UI.UIMenuStyle.Black;
-            this.Aside.ShowOneNode = true;
             this.Aside.ShowTips = true;
             this.Aside.Size = new System.Drawing.Size(250, 573);
             this.Aside.Style = Sunny.UI.UIStyle.Custom;
@@ -57,20 +56,20 @@
             this.Header.Controls.Add(this.uiAvatar);
             this.Header.Controls.Add(this.uiLogo1);
             this.Header.Location = new System.Drawing.Point(2, 35);
-            treeNode1.ImageIndex = 1;
-            treeNode1.Name = "节点0";
-            treeNode1.Text = "控件";
-            treeNode2.Name = "节点1";
-            treeNode2.Text = "窗体";
-            treeNode3.Name = "节点2";
-            treeNode3.Text = "图表";
-            treeNode4.Name = "节点2";
-            treeNode4.Text = "主题";
+            treeNode5.ImageIndex = 1;
+            treeNode5.Name = "节点0";
+            treeNode5.Text = "控件";
+            treeNode6.Name = "节点1";
+            treeNode6.Text = "窗体";
+            treeNode7.Name = "节点2";
+            treeNode7.Text = "图表";
+            treeNode8.Name = "节点2";
+            treeNode8.Text = "主题";
             this.Header.Nodes.AddRange(new System.Windows.Forms.TreeNode[] {
-            treeNode1,
-            treeNode2,
-            treeNode3,
-            treeNode4});
+            treeNode5,
+            treeNode6,
+            treeNode7,
+            treeNode8});
             this.Header.SelectedIndex = 0;
             this.Header.Size = new System.Drawing.Size(1020, 110);
             this.Header.Style = Sunny.UI.UIStyle.Custom;
@@ -78,7 +77,7 @@
             // 
             // uiLogo1
             // 
-            this.uiLogo1.Font = new System.Drawing.Font("微软雅黑", 12F);
+            this.uiLogo1.Font = new System.Drawing.Font("微软雅黑", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
             this.uiLogo1.Location = new System.Drawing.Point(20, 15);
             this.uiLogo1.MaximumSize = new System.Drawing.Size(300, 80);
             this.uiLogo1.MinimumSize = new System.Drawing.Size(300, 80);
@@ -91,7 +90,7 @@
             // uiAvatar
             // 
             this.uiAvatar.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
-            this.uiAvatar.Font = new System.Drawing.Font("微软雅黑", 12F);
+            this.uiAvatar.Font = new System.Drawing.Font("微软雅黑", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
             this.uiAvatar.Location = new System.Drawing.Point(939, 25);
             this.uiAvatar.MinimumSize = new System.Drawing.Size(1, 1);
             this.uiAvatar.Name = "uiAvatar";
diff --git a/SunnyUI.Net5.Demo/FMain.resx b/SunnyUI.Net5.Demo/FMain.resx
index 8afef9d3..24c27de7 100644
--- a/SunnyUI.Net5.Demo/FMain.resx
+++ b/SunnyUI.Net5.Demo/FMain.resx
@@ -1,64 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
-  <!-- 
-    Microsoft ResX Schema 
-    
-    Version 2.0
-    
-    The primary goals of this format is to allow a simple XML format 
-    that is mostly human readable. The generation and parsing of the 
-    various data types are done through the TypeConverter classes 
-    associated with the data types.
-    
-    Example:
-    
-    ... ado.net/XML headers & schema ...
-    <resheader name="resmimetype">text/microsoft-resx</resheader>
-    <resheader name="version">2.0</resheader>
-    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
-    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
-    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
-    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
-    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
-        <value>[base64 mime encoded serialized .NET Framework object]</value>
-    </data>
-    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
-        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
-        <comment>This is a comment</comment>
-    </data>
-                
-    There are any number of "resheader" rows that contain simple 
-    name/value pairs.
-    
-    Each data row contains a name, and value. The row also contains a 
-    type or mimetype. Type corresponds to a .NET class that support 
-    text/value conversion through the TypeConverter architecture. 
-    Classes that don't support this are serialized and stored with the 
-    mimetype set.
-    
-    The mimetype is used for serialized objects, and tells the 
-    ResXResourceReader how to depersist the object. This is currently not 
-    extensible. For a given mimetype the value must be set accordingly:
-    
-    Note - application/x-microsoft.net.object.binary.base64 is the format 
-    that the ResXResourceWriter will generate, however the reader can 
-    read any of the formats listed below.
-    
-    mimetype: application/x-microsoft.net.object.binary.base64
-    value   : The object must be serialized with 
-            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
-            : and then encoded with base64 encoding.
-    
-    mimetype: application/x-microsoft.net.object.soap.base64
-    value   : The object must be serialized with 
-            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
-            : and then encoded with base64 encoding.
-
-    mimetype: application/x-microsoft.net.object.bytearray.base64
-    value   : The object must be serialized into a byte array 
-            : using a System.ComponentModel.TypeConverter
-            : and then encoded with base64 encoding.
-    -->
+<root>
   <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
     <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
     <xsd:element name="root" msdata:IsDataSet="true">
@@ -117,11 +57,8 @@
   <resheader name="writer">
     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </resheader>
-  <metadata name="StyleManager.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
-    <value>17, 17</value>
-  </metadata>
-  <assembly alias="System.Drawing" name="System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
-  <data name="$this.Icon" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+  <assembly alias="System.Drawing.Common" name="System.Drawing.Common, Version=5.0.0.2, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51" />
+  <data name="$this.Icon" type="System.Drawing.Icon, System.Drawing.Common" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         AAABAAcAMDAAAAEACACoDgAAdgAAACAgAAABAAgAqAgAAB4PAAAQEAAAAQAIAGgFAADGFwAASEgAAAEA
         IACIVAAALh0AADAwAAABACAAqCUAALZxAAAgIAAAAQAgAKgQAABelwAAEBAAAAEAIABoBAAABqgAACgA
diff --git a/SunnyUI/Controls/UINavMenu.cs b/SunnyUI/Controls/UINavMenu.cs
index fa5dfc63..df68b57b 100644
--- a/SunnyUI/Controls/UINavMenu.cs
+++ b/SunnyUI/Controls/UINavMenu.cs
@@ -586,7 +586,7 @@ namespace Sunny.UI
             }
         }
 
-        [Description("展开节点后选中第一个子节点"), DefaultValue(true), Category("SunnyUI")]
+        [Description("展开节点后选中第一个子节点"), Category("SunnyUI")]
         public bool ExpandSelectFirst { get; set; } = true;
 
         public string Version { get; }