diff --git a/Bin/net40/SunnyUI.dll b/Bin/net40/SunnyUI.dll
index 55034133..1f813a5a 100644
Binary files a/Bin/net40/SunnyUI.dll and b/Bin/net40/SunnyUI.dll differ
diff --git a/SunnyUI.Demo/Bin/SunnyUI.Demo.exe b/SunnyUI.Demo/Bin/SunnyUI.Demo.exe
index 79311e88..eb5a752d 100644
Binary files a/SunnyUI.Demo/Bin/SunnyUI.Demo.exe and b/SunnyUI.Demo/Bin/SunnyUI.Demo.exe differ
diff --git a/SunnyUI/Charts/UIChart.cs b/SunnyUI/Charts/UIChart.cs
index 9386fed0..1e951115 100644
--- a/SunnyUI/Charts/UIChart.cs
+++ b/SunnyUI/Charts/UIChart.cs
@@ -65,7 +65,7 @@ namespace Sunny.UI
         {
             tip.IsScaled = true;
             float size = SubFont != null ? SubFont.Size : UIFontColor.SubFontSize;
-            tip.Font = this.DPIScaleFont(Font, size);
+            tip.Font = this.Font.DPIScaleFont(size);
         }
 
         protected override void Dispose(bool disposing)
@@ -201,7 +201,7 @@ namespace Sunny.UI
                 if (tmpFont == null || !tmpFont.Size.EqualsFloat(size / UIDPIScale.DPIScale()))
                 {
                     tmpFont?.Dispose();
-                    tmpFont = this.DPIScaleFont(Font, size);
+                    tmpFont = this.Font.DPIScaleFont(size);
                 }
 
                 return tmpFont;
@@ -219,7 +219,7 @@ namespace Sunny.UI
                 if (tmpLegendFont == null || !tmpLegendFont.Size.EqualsFloat(size / UIDPIScale.DPIScale()))
                 {
                     tmpLegendFont?.Dispose();
-                    tmpLegendFont = this.DPIScaleFont(Font, size);
+                    tmpLegendFont = this.Font.DPIScaleFont(size);
                 }
 
                 return tmpLegendFont;
diff --git a/SunnyUI/Controls/DropItem/UIColorItem.cs b/SunnyUI/Controls/DropItem/UIColorItem.cs
index f2a8f278..e5380e6e 100644
--- a/SunnyUI/Controls/DropItem/UIColorItem.cs
+++ b/SunnyUI/Controls/DropItem/UIColorItem.cs
@@ -605,7 +605,7 @@ namespace Sunny.UI
             e.Graphics.FillRectangle(c, r);
         }
 
-        public override void SetStyle(UIBaseStyle uiColor)
+        public override void SetStyleColor(UIBaseStyle uiColor)
         {
             base.SetStyleColor(uiColor);
             RectColor = uiColor.RectColor;
diff --git a/SunnyUI/Controls/DropItem/UIComboDataGridViewItem.cs b/SunnyUI/Controls/DropItem/UIComboDataGridViewItem.cs
index 5895d5f3..f765f75e 100644
--- a/SunnyUI/Controls/DropItem/UIComboDataGridViewItem.cs
+++ b/SunnyUI/Controls/DropItem/UIComboDataGridViewItem.cs
@@ -264,6 +264,18 @@ namespace Sunny.UI
 
         }
 
+        public override void SetStyleColor(UIBaseStyle uiColor)
+        {
+            base.SetStyleColor(uiColor);
+            pFilter.SetStyleColor(uiColor.DropDownStyle);
+            dataGridView.SetStyleColor(uiColor.DropDownStyle);
+            panel.SetStyleColor(uiColor.DropDownStyle);
+            edtFilter.SetStyleColor(uiColor.DropDownStyle);
+            btnOK.SetStyleColor(uiColor.DropDownStyle);
+            btnSearch.SetStyleColor(uiColor.DropDownStyle);
+            btnClear.SetStyleColor(uiColor.DropDownStyle);
+        }
+
         private void DataGridView_DataSourceChanged(object sender, System.EventArgs e)
         {
             if (dataGridView.RowCount > 0)
diff --git a/SunnyUI/Controls/DropItem/UIComboTreeViewItem.cs b/SunnyUI/Controls/DropItem/UIComboTreeViewItem.cs
index fb65c7fb..8ae06963 100644
--- a/SunnyUI/Controls/DropItem/UIComboTreeViewItem.cs
+++ b/SunnyUI/Controls/DropItem/UIComboTreeViewItem.cs
@@ -150,8 +150,9 @@ namespace Sunny.UI
             }
         }
 
-        public override void SetStyle(UIBaseStyle style)
+        public override void SetStyleColor(UIBaseStyle style)
         {
+            base.SetStyleColor(style);
             treeView.Style = style.Name;
             panel.Style = style.Name;
             btnOK.Style = style.Name;
diff --git a/SunnyUI/Controls/DropItem/UIDateItem.cs b/SunnyUI/Controls/DropItem/UIDateItem.cs
index cbeb96c5..9534f80f 100644
--- a/SunnyUI/Controls/DropItem/UIDateItem.cs
+++ b/SunnyUI/Controls/DropItem/UIDateItem.cs
@@ -555,6 +555,8 @@ namespace Sunny.UI
             b2.SetStyleColor(uiColor);
             b3.SetStyleColor(uiColor);
             b4.SetStyleColor(uiColor);
+            fillColor = Color.White;
+            foreColor = uiColor.DropDownPanelForeColor;
 
             b1.FillColor = b2.FillColor = b3.FillColor = b4.FillColor = TopPanel.FillColor;
             RectColor = uiColor.RectColor;
diff --git a/SunnyUI/Controls/DropItem/UIDateTimeItem.cs b/SunnyUI/Controls/DropItem/UIDateTimeItem.cs
index 9500b08a..ca27417f 100644
--- a/SunnyUI/Controls/DropItem/UIDateTimeItem.cs
+++ b/SunnyUI/Controls/DropItem/UIDateTimeItem.cs
@@ -961,7 +961,13 @@ namespace Sunny.UI
         public override void SetStyleColor(UIBaseStyle uiColor)
         {
             base.SetStyleColor(uiColor);
-            FillColor = Color.White;
+
+            btnOK.SetStyleColor(uiColor);
+            btnCancel.SetStyleColor(uiColor);
+
+            fillColor = Color.White;
+            foreColor = uiColor.DropDownPanelForeColor;
+
             b1.SetStyleColor(uiColor);
             b2.SetStyleColor(uiColor);
             b3.SetStyleColor(uiColor);
@@ -989,13 +995,6 @@ namespace Sunny.UI
             s1.SymbolColor = s2.SymbolColor = RectColor;
         }
 
-        public override void SetStyle(UIBaseStyle style)
-        {
-            base.SetStyle(style);
-            btnOK.SetStyleColor(style);
-            btnCancel.SetStyleColor(style);
-        }
-
         private void UITimeItem_MouseWheel(object sender, System.Windows.Forms.MouseEventArgs e)
         {
             if (e.Delta < 0)
diff --git a/SunnyUI/Controls/DropItem/UIDropControl.cs b/SunnyUI/Controls/DropItem/UIDropControl.cs
index bea247ea..03ac80c6 100644
--- a/SunnyUI/Controls/DropItem/UIDropControl.cs
+++ b/SunnyUI/Controls/DropItem/UIDropControl.cs
@@ -286,7 +286,7 @@ namespace Sunny.UI
 
             if (!edit.Visible)
             {
-                base.OnPaintFore(g, path);
+                g.DrawString(Text, Font, GetForeColor(), Size, Padding, TextAlignment);
             }
 
             g.FillRectangle(GetFillColor(), new Rectangle(Width - 27, Radius / 2, 26, Height - Radius));
@@ -367,7 +367,7 @@ namespace Sunny.UI
         public override void SetStyleColor(UIBaseStyle uiColor)
         {
             base.SetStyleColor(uiColor);
-            foreColor = uiColor.DropDownControlColor;
+            foreColor = uiColor.DropDownPanelForeColor;
             edit.BackColor = fillColor = Color.White;
         }
 
@@ -394,7 +394,7 @@ namespace Sunny.UI
                     ItemForm.SetRectColor(rectColor);
                     ItemForm.SetFillColor(fillColor);
                     ItemForm.SetForeColor(foreColor);
-                    ItemForm.SetStyle(UIStyles.ActiveStyleColor);
+                    ItemForm.SetStyle(UIStyles.ActiveStyleColor.DropDownStyle);
                 }
 
                 DropDown?.Invoke(this, e);
diff --git a/SunnyUI/Controls/DropItem/UIDropDown.cs b/SunnyUI/Controls/DropItem/UIDropDown.cs
index c78dad2d..f4a18f97 100644
--- a/SunnyUI/Controls/DropItem/UIDropDown.cs
+++ b/SunnyUI/Controls/DropItem/UIDropDown.cs
@@ -344,7 +344,7 @@ namespace Sunny.UI
 
         public void SetStyle(UIBaseStyle style)
         {
-            Item?.SetStyle(style);
+            Item?.SetStyleColor(style);
         }
     }
 }
\ No newline at end of file
diff --git a/SunnyUI/Controls/DropItem/UIDropDownItem.cs b/SunnyUI/Controls/DropItem/UIDropDownItem.cs
index 37f10c51..f2dc1f0c 100644
--- a/SunnyUI/Controls/DropItem/UIDropDownItem.cs
+++ b/SunnyUI/Controls/DropItem/UIDropDownItem.cs
@@ -94,10 +94,6 @@ namespace Sunny.UI
             parent?.Close();
         }
 
-        public virtual void SetStyle(UIBaseStyle style)
-        {
-        }
-
         public virtual void InitShow()
         {
 
diff --git a/SunnyUI/Controls/DropItem/UITimeItem.cs b/SunnyUI/Controls/DropItem/UITimeItem.cs
index 8afa7621..76c272dd 100644
--- a/SunnyUI/Controls/DropItem/UITimeItem.cs
+++ b/SunnyUI/Controls/DropItem/UITimeItem.cs
@@ -595,17 +595,13 @@ namespace Sunny.UI
             Close();
         }
 
-        public override void SetStyle(UIBaseStyle style)
-        {
-            base.SetStyle(style);
-            btnOK.SetStyleColor(style);
-            btnCancel.SetStyleColor(style);
-        }
-
         public override void SetStyleColor(UIBaseStyle uiColor)
         {
             base.SetStyleColor(uiColor);
 
+            btnOK.SetStyleColor(uiColor);
+            btnCancel.SetStyleColor(uiColor);
+
             h1.SetStyleColor(uiColor);
             h2.SetStyleColor(uiColor);
             m1.SetStyleColor(uiColor);
diff --git a/SunnyUI/Controls/UIComboBox.cs b/SunnyUI/Controls/UIComboBox.cs
index 80e8bbec..3780acec 100644
--- a/SunnyUI/Controls/UIComboBox.cs
+++ b/SunnyUI/Controls/UIComboBox.cs
@@ -208,7 +208,7 @@ namespace Sunny.UI
         public override void SetStyleColor(UIBaseStyle uiColor)
         {
             base.SetStyleColor(uiColor);
-            ListBox.SetStyleColor(uiColor);
+            ListBox.SetStyleColor(uiColor.DropDownStyle);
         }
 
         public object DataSource
diff --git a/SunnyUI/Controls/UINavMenu.cs b/SunnyUI/Controls/UINavMenu.cs
index fa5f147e..55e61b8d 100644
--- a/SunnyUI/Controls/UINavMenu.cs
+++ b/SunnyUI/Controls/UINavMenu.cs
@@ -765,7 +765,7 @@ namespace Sunny.UI
                 if (tmpFont == null || !tmpFont.Size.EqualsFloat(TipsFont.DPIScaleFontSize()))
                 {
                     tmpFont?.Dispose();
-                    tmpFont = this.DPIScaleFont(TipsFont);
+                    tmpFont = TipsFont.DPIScaleFont();
                 }
 
                 return tmpFont;
diff --git a/SunnyUI/Controls/UIPanel.cs b/SunnyUI/Controls/UIPanel.cs
index 4030b8c1..bbb3f9c2 100644
--- a/SunnyUI/Controls/UIPanel.cs
+++ b/SunnyUI/Controls/UIPanel.cs
@@ -697,6 +697,7 @@ namespace Sunny.UI
             return Enabled ? (isReadOnly ? fillReadOnlyColor : fillColor) : fillDisableColor;
         }
 
+
         /// <summary>
         /// 屏蔽原属性，获取或设置一个值，该值指示是否在 Windows 任务栏中显示窗体。
         /// </summary>
diff --git a/SunnyUI/Forms/UIForm.cs b/SunnyUI/Forms/UIForm.cs
index 55cc4c29..4971f7d0 100644
--- a/SunnyUI/Forms/UIForm.cs
+++ b/SunnyUI/Forms/UIForm.cs
@@ -92,7 +92,7 @@ namespace Sunny.UI
 
                 if (!UIDPIScale.DPIScaleIsOne())
                 {
-                    TitleFont = this.DPIScaleFont(TitleFont);
+                    TitleFont = TitleFont.DPIScaleFont();
                 }
 
                 foreach (Control control in this.GetAllDPIScaleControls())
diff --git a/SunnyUI/Forms/UINotifier.cs b/SunnyUI/Forms/UINotifier.cs
index fa97f144..db5c7ff6 100644
--- a/SunnyUI/Forms/UINotifier.cs
+++ b/SunnyUI/Forms/UINotifier.cs
@@ -50,9 +50,9 @@ namespace Sunny.UI
             {
                 this.SetDPIScaleFont();
 
-                noteTitle.Font = noteTitle.DPIScaleFont(noteTitle.Font);
-                noteContent.Font = noteContent.DPIScaleFont(noteContent.Font);
-                noteDate.Font = noteDate.DPIScaleFont(noteDate.Font);
+                noteTitle.Font = noteTitle.Font.DPIScaleFont();
+                noteContent.Font = noteContent.Font.DPIScaleFont();
+                noteDate.Font = noteDate.Font.DPIScaleFont();
 
                 foreach (Control control in this.GetAllDPIScaleControls())
                 {
@@ -385,7 +385,7 @@ namespace Sunny.UI
         //-------------------------------------------------------------------------------------------------------------------------------
         private void onMenuClick(object sender, EventArgs e)
         {
-            closeAllToolStripMenuItem.Font = menu.DPIScaleFont(menu.Font);
+            closeAllToolStripMenuItem.Font = menu.Font.DPIScaleFont();
             menu.Show(buttonMenu, new Point(0, buttonMenu.Height));
         }
 
diff --git a/SunnyUI/Frames/UIPage.cs b/SunnyUI/Frames/UIPage.cs
index feca78c8..2eddb386 100644
--- a/SunnyUI/Frames/UIPage.cs
+++ b/SunnyUI/Frames/UIPage.cs
@@ -85,7 +85,7 @@ namespace Sunny.UI
                 this.SetDPIScaleFont();
                 if (!UIDPIScale.DPIScaleIsOne())
                 {
-                    this.TitleFont = this.DPIScaleFont(this.TitleFont);
+                    this.TitleFont = TitleFont.DPIScaleFont();
                 }
 
                 foreach (Control control in this.GetAllDPIScaleControls())
diff --git a/SunnyUI/Style/UIDPIScale.cs b/SunnyUI/Style/UIDPIScale.cs
index 05ef635c..579db752 100644
--- a/SunnyUI/Style/UIDPIScale.cs
+++ b/SunnyUI/Style/UIDPIScale.cs
@@ -37,7 +37,7 @@ namespace Sunny.UI
             return DPIScale().EqualsFloat(1);
         }
 
-        public static float DPIScaleFontSize(this Control control, Font font)
+        internal static float DPIScaleFontSize(this Font font)
         {
             if (UIStyles.DPIScale)
                 return font.Size / DPIScale();
@@ -45,43 +45,12 @@ namespace Sunny.UI
                 return font.Size;
         }
 
-        public static float DPIScaleFontSize(this Font font)
+        internal static Font DPIScaleFont(this Font font)
         {
-            return font.Size.DPIScaleFontSize();
+            return DPIScaleFont(font, font.Size);
         }
 
-        public static float DPIScaleFontSize(this float fontSize)
-        {
-            if (UIStyles.DPIScale)
-                return fontSize / DPIScale();
-            else
-                return fontSize;
-        }
-
-        public static Font DPIScaleFont(this Control control, Font font)
-        {
-            return control.DPIScaleFont(font, font.Size);
-        }
-
-        public static Font DPIScaleFont(this Font font)
-        {
-            if (UIStyles.DPIScale)
-            {
-                if (font.GdiCharSet == 134)
-                    return new Font(font.FontFamily, font.Size / DPIScale(), font.Style, font.Unit, font.GdiCharSet);
-                else
-                    return new Font(font.FontFamily, font.Size / DPIScale());
-            }
-            else
-            {
-                if (font.GdiCharSet == 134)
-                    return new Font(font.FontFamily, font.Size, font.Style, font.Unit, font.GdiCharSet);
-                else
-                    return new Font(font.FontFamily, font.Size);
-            }
-        }
-
-        public static Font DPIScaleFont(this Control control, Font font, float fontSize)
+        internal static Font DPIScaleFont(this Font font, float fontSize)
         {
             if (UIStyles.DPIScale)
             {
@@ -99,7 +68,7 @@ namespace Sunny.UI
             }
         }
 
-        public static void SetDPIScaleFont(this Control control)
+        internal static void SetDPIScaleFont(this Control control)
         {
             if (!UIStyles.DPIScale) return;
             if (!UIDPIScale.DPIScaleIsOne())
@@ -107,12 +76,12 @@ namespace Sunny.UI
                 if (control is IStyleInterface ctrl)
                 {
                     if (!ctrl.IsScaled)
-                        control.Font = control.DPIScaleFont(control.Font);
+                        control.Font = control.Font.DPIScaleFont();
                 }
             }
         }
 
-        public static List<Control> GetAllDPIScaleControls(this Control control)
+        internal static List<Control> GetAllDPIScaleControls(this Control control)
         {
             var list = new List<Control>();
             foreach (Control con in control.Controls)
diff --git a/SunnyUI/Style/UIStyleColor.cs b/SunnyUI/Style/UIStyleColor.cs
index fab86488..afb3ce8d 100644
--- a/SunnyUI/Style/UIStyleColor.cs
+++ b/SunnyUI/Style/UIStyleColor.cs
@@ -174,8 +174,10 @@ namespace Sunny.UI
         public virtual Color PanelTitleColor { get; protected set; }
         public virtual Color PanelTitleForeColor { get; protected set; }
 
-        //DrawDownControl
+        //DropDownControl
         public virtual Color DropDownControlColor { get; protected set; }
+        public virtual Color DropDownPanelFillColor { get; protected set; }
+        public virtual Color DropDownPanelForeColor { get; protected set; }
 
         //ListBox
         public virtual Color ListItemSelectBackColor { get; protected set; }
@@ -222,6 +224,8 @@ namespace Sunny.UI
 
         protected Color ForeColor { get; set; }
 
+        public UIBaseStyle DropDownStyle { get; protected set; }
+
         public virtual UIBaseStyle Init(Color color, UIStyle style, Color reverseColor, Color foreColor)
         {
             Name = style;
@@ -356,6 +360,8 @@ namespace Sunny.UI
             TabControlBackColor = PlainColor;
 
             DropDownControlColor = foreColor;
+            DropDownPanelFillColor = PlainColor;
+            DropDownPanelForeColor = foreColor;
 
             ListItemSelectBackColor = PrimaryColor;
             ListItemSelectForeColor = PlainColor;
@@ -384,6 +390,8 @@ namespace Sunny.UI
             FlowLayoutPanelBarFillColor = PlainColor;
             FlowLayoutPanelBarForeColor = PrimaryColor;
 
+            DropDownStyle = this;
+
             return this;
         }
 
@@ -568,6 +576,12 @@ namespace Sunny.UI
             ScrollingTextForeColor = ForeColor;
 
             LogoForeColor = UIFontColor.Primary;
+
+            DropDownControlColor = ForeColor;
+            DropDownPanelFillColor = UIColor.LightBlue;
+            DropDownPanelForeColor = UIFontColor.Primary;
+
+            DropDownStyle = UIStyles.Blue;
         }
     }
 
@@ -674,6 +688,12 @@ namespace Sunny.UI
             ScrollingTextForeColor = ForeColor;
 
             LogoForeColor = UIFontColor.Primary;
+
+            DropDownControlColor = ForeColor;
+            DropDownPanelFillColor = UIColor.LightBlue;
+            DropDownPanelForeColor = UIFontColor.Primary;
+
+            DropDownStyle = UIStyles.Blue;
         }
     }
 }
\ No newline at end of file