diff --git a/HFUTCourseSimulation/Asset/Icon.ico b/HFUTCourseSimulation/Asset/Icon.ico
new file mode 100644
index 0000000..a459c56
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diff --git a/HFUTCourseSimulation/Asset/Icon.png b/HFUTCourseSimulation/Asset/Icon.png
new file mode 100644
index 0000000..430e2b2
Binary files /dev/null and b/HFUTCourseSimulation/Asset/Icon.png differ
diff --git a/HFUTCourseSimulation/Asset/Icon.svg b/HFUTCourseSimulation/Asset/Icon.svg
new file mode 100644
index 0000000..a25d55f
--- /dev/null
+++ b/HFUTCourseSimulation/Asset/Icon.svg
@@ -0,0 +1,136 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
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+   width="512"
+   height="512"
+   viewBox="0 0 512 512"
+   version="1.1"
+   id="svg1"
+   inkscape:version="1.3.2 (091e20e, 2023-11-25, custom)"
+   sodipodi:docname="Icon.svg"
+   inkscape:export-filename="Icon.png"
+   inkscape:export-xdpi="96"
+   inkscape:export-ydpi="96"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
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+     pagecolor="#ffffff"
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+       empopacity="0.30196078"
+       color="#0099e5"
+       opacity="0.14901961"
+       empspacing="8"
+       dotted="false"
+       gridanglex="30"
+       gridanglez="30"
+       visible="true" />
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+     id="defs1" />
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+     inkscape:label="图层 1"
+     inkscape:groupmode="layer"
+     id="layer1">
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+       style="fill:#f44336;fill-opacity:1;stroke:none"
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+       ry="24" />
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+       style="fill:#ffeb3b;fill-opacity:1;stroke:none"
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+    <text
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+       xml:space="preserve"
+       style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:96px;font-family:'Source Han Sans CN';-inkscape-font-specification:'Source Han Sans CN';fill:#000000;fill-opacity:1;stroke:none"
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diff --git a/HFUTCourseSimulation/HFUTCourseSimulation.csproj b/HFUTCourseSimulation/HFUTCourseSimulation.csproj
index 61ba82e..87b7061 100644
--- a/HFUTCourseSimulation/HFUTCourseSimulation.csproj
+++ b/HFUTCourseSimulation/HFUTCourseSimulation.csproj
@@ -33,6 +33,9 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
+  <PropertyGroup>
+    <ApplicationIcon>Icon.ico</ApplicationIcon>
+  </PropertyGroup>
   <ItemGroup>
     <Reference Include="Newtonsoft.Json, Version=12.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <HintPath>..\packages\Newtonsoft.Json.12.0.1\lib\net45\Newtonsoft.Json.dll</HintPath>
@@ -163,6 +166,11 @@
   <ItemGroup>
     <None Include="App.config" />
   </ItemGroup>
-  <ItemGroup />
+  <ItemGroup>
+    <Folder Include="Asset\" />
+  </ItemGroup>
+  <ItemGroup>
+    <Resource Include="Icon.ico" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
 </Project>
\ No newline at end of file
diff --git a/HFUTCourseSimulation/Icon.ico b/HFUTCourseSimulation/Icon.ico
new file mode 100644
index 0000000..a459c56
Binary files /dev/null and b/HFUTCourseSimulation/Icon.ico differ
diff --git a/HFUTCourseSimulation/Kernel/Data/LegacyStorage/V1.cs b/HFUTCourseSimulation/Kernel/Data/LegacyStorage/V1.cs
index a3ee892..73d9433 100644
--- a/HFUTCourseSimulation/Kernel/Data/LegacyStorage/V1.cs
+++ b/HFUTCourseSimulation/Kernel/Data/LegacyStorage/V1.cs
@@ -28,7 +28,10 @@ namespace HFUTCourseSimulation.Kernel.Data.LegacyStorage.V1 {
             return new Storage.Semester() {
                 StartDate = StartDate,
                 WeekCount = WeekCount.ToString(),
-                // Other properties keep original value.
+                IndexCount = 11.ToString(),
+                BreakfastAt = 0.ToString(),
+                LunchAt = 4.ToString(),
+                DinnerAt = 8.ToString(),
                 Courses = Courses.Select((item) => item.ToLatest()).ToList()
             };
         }
diff --git a/HFUTCourseSimulation/MainWindow.xaml b/HFUTCourseSimulation/MainWindow.xaml
index bf30011..bd17d29 100644
--- a/HFUTCourseSimulation/MainWindow.xaml
+++ b/HFUTCourseSimulation/MainWindow.xaml
@@ -7,7 +7,7 @@
         xmlns:uidata="clr-namespace:HFUTCourseSimulation.Kernel.Data.Ui"
         mc:Ignorable="d"
         d:DataContext="{d:DesignInstance local:MainWindowContext}"
-        Title="{Binding AppTitle, Mode=OneWay}" Height="600" Width="800">
+        Title="{Binding AppTitle, Mode=OneWay}" Height="600" Width="800" Icon="/Icon.ico">
     <Window.Resources>
         <RoutedUICommand x:Key="commandMenuNew"/>
         <RoutedUICommand x:Key="commandMenuOpen"/>