diff --git a/DeedyDesigner/Deedy.Design/AssemblyInfo.cs b/DeedyDesigner/Deedy.Design/AssemblyInfo.cs
new file mode 100644
index 0000000..b0ec827
--- /dev/null
+++ b/DeedyDesigner/Deedy.Design/AssemblyInfo.cs
@@ -0,0 +1,10 @@
+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None,            //where theme specific resource dictionaries are located
+                                                //(used if a resource is not found in the page,
+                                                // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly   //where the generic resource dictionary is located
+                                                //(used if a resource is not found in the page,
+                                                // app, or any theme specific resource dictionaries)
+)]
diff --git a/DeedyDesigner/Deedy.Design/Deedy.Design.csproj b/DeedyDesigner/Deedy.Design/Deedy.Design.csproj
new file mode 100644
index 0000000..6c78894
--- /dev/null
+++ b/DeedyDesigner/Deedy.Design/Deedy.Design.csproj
@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0-windows</TargetFramework>
+    <Nullable>enable</Nullable>
+    <UseWPF>true</UseWPF>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+</Project>
diff --git a/DeedyDesigner/Deedy.Design/DeedyViewer.cs b/DeedyDesigner/Deedy.Design/DeedyViewer.cs
new file mode 100644
index 0000000..6a600cd
--- /dev/null
+++ b/DeedyDesigner/Deedy.Design/DeedyViewer.cs
@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+
+namespace Deedy.Design
+{
+    /// <summary>
+    /// 按照步骤 1a 或 1b 操作，然后执行步骤 2 以在 XAML 文件中使用此自定义控件。
+    ///
+    /// 步骤 1a) 在当前项目中存在的 XAML 文件中使用该自定义控件。
+    /// 将此 XmlNamespace 特性添加到要使用该特性的标记文件的根
+    /// 元素中:
+    ///
+    ///     xmlns:MyNamespace="clr-namespace:Deedy.Design"
+    ///
+    ///
+    /// 步骤 1b) 在其他项目中存在的 XAML 文件中使用该自定义控件。
+    /// 将此 XmlNamespace 特性添加到要使用该特性的标记文件的根
+    /// 元素中:
+    ///
+    ///     xmlns:MyNamespace="clr-namespace:Deedy.Design;assembly=Deedy.Design"
+    ///
+    /// 您还需要添加一个从 XAML 文件所在的项目到此项目的项目引用，
+    /// 并重新生成以避免编译错误:
+    ///
+    ///     在解决方案资源管理器中右击目标项目，然后依次单击
+    ///     “添加引用”->“项目”->[浏览查找并选择此项目]
+    ///
+    ///
+    /// 步骤 2)
+    /// 继续操作并在 XAML 文件中使用控件。
+    ///
+    ///     <MyNamespace:DeedyViewer/>
+    ///
+    /// </summary>
+    public class DeedyViewer : Control
+    {
+        static DeedyViewer()
+        {
+            DefaultStyleKeyProperty.OverrideMetadata(typeof(DeedyViewer), new FrameworkPropertyMetadata(typeof(DeedyViewer)));
+        }
+    }
+}
diff --git a/DeedyDesigner/Deedy.Design/Themes/Generic.xaml b/DeedyDesigner/Deedy.Design/Themes/Generic.xaml
new file mode 100644
index 0000000..268bfe2
--- /dev/null
+++ b/DeedyDesigner/Deedy.Design/Themes/Generic.xaml
@@ -0,0 +1,19 @@
+<ResourceDictionary
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:local="clr-namespace:Deedy.Design">
+
+
+    <Style TargetType="{x:Type local:DeedyViewer}">
+        <Setter Property="Template">
+            <Setter.Value>
+                <ControlTemplate TargetType="{x:Type local:DeedyViewer}">
+                    <Border Background="{TemplateBinding Background}"
+                            BorderBrush="{TemplateBinding BorderBrush}"
+                            BorderThickness="{TemplateBinding BorderThickness}">
+                    </Border>
+                </ControlTemplate>
+            </Setter.Value>
+        </Setter>
+    </Style>
+</ResourceDictionary>
diff --git a/DeedyDesigner/DeedyDesigner.sln b/DeedyDesigner/DeedyDesigner.sln
new file mode 100644
index 0000000..56da7c8
--- /dev/null
+++ b/DeedyDesigner/DeedyDesigner.sln
@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.12.35527.113 d17.12
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Deedy.Design", "Deedy.Design\Deedy.Design.csproj", "{31386106-38FB-4CF6-A379-936CC292AFAE}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{31386106-38FB-4CF6-A379-936CC292AFAE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{31386106-38FB-4CF6-A379-936CC292AFAE}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{31386106-38FB-4CF6-A379-936CC292AFAE}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{31386106-38FB-4CF6-A379-936CC292AFAE}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal