diff --git a/HFUTCourseSimulation/Course.cs b/HFUTCourseSimulation/Course.cs
index e654a44..4cedf03 100644
--- a/HFUTCourseSimulation/Course.cs
+++ b/HFUTCourseSimulation/Course.cs
@@ -23,7 +23,7 @@ namespace HFUTCourseSimulation {
     public class CourseItem {
 
         public CourseItem() {
-            BkColor = Colors.LightBlue.ColorToInt();
+            //BkColor = Colors.LightBlue.ColorToInt();
             this.Schedule = new List<ScheduleItem>();
         }
 
diff --git a/HFUTCourseSimulation/Dialog/EditCourse.xaml b/HFUTCourseSimulation/Dialog/EditCourse.xaml
index 742b885..e597c96 100644
--- a/HFUTCourseSimulation/Dialog/EditCourse.xaml
+++ b/HFUTCourseSimulation/Dialog/EditCourse.xaml
@@ -21,22 +21,22 @@
                 <ScrollViewer>
                     <StackPanel Orientation="Vertical" Margin="10,0,10,0">
                         <TextBlock Text="课程名称" FontWeight="Bold" Margin="0,10,0,0"/>
-                        <TextBox Text="{Binding name, Mode=TwoWay}" Width="200" HorizontalAlignment="Left" Margin="0,5,0,0"/>
+                        <TextBox Text="{Binding Name, Mode=TwoWay}" Width="200" HorizontalAlignment="Left" Margin="0,5,0,0"/>
 
                         <TextBlock Text="课程颜色" FontWeight="Bold" Padding="5" Margin="0,10,0,0"/>
                         <Border ToolTip="单击改变颜色" Width="200" HorizontalAlignment="Left" BorderBrush="Black" BorderThickness="1" Cursor="Hand" Margin="0,5,0,0">
                             <Border.Background>
-                                <SolidColorBrush Color="{Binding color.background, Mode=TwoWay}"/>
+                                <SolidColorBrush Color="{Binding Color.Background, Mode=TwoWay}"/>
                             </Border.Background>
                             <TextBlock Text="示例颜色" Margin="5">
                                 <TextBlock.Foreground>
-                                    <SolidColorBrush Color="{Binding color.foreground, Mode=TwoWay}"/>
+                                    <SolidColorBrush Color="{Binding Color.Foreground, Mode=TwoWay}"/>
                                 </TextBlock.Foreground>
                             </TextBlock>
                         </Border>
 
                         <TextBlock Text="注释" FontWeight="Bold" Margin="0,10,0,0"/>
-                        <TextBox Text="{Binding description, Mode=TwoWay}" Height="100" Width="400" HorizontalAlignment="Left" AcceptsReturn="True" Padding="5" Margin="0,5,0,0"/>
+                        <TextBox Text="{Binding Description, Mode=TwoWay}" Height="100" Width="400" HorizontalAlignment="Left" AcceptsReturn="True" Padding="5" Margin="0,5,0,0"/>
                     </StackPanel>
                 </ScrollViewer>
             </TabItem>
diff --git a/HFUTCourseSimulation/Dialog/EditSchedule.xaml b/HFUTCourseSimulation/Dialog/EditSchedule.xaml
index b6d2a59..0b1e655 100644
--- a/HFUTCourseSimulation/Dialog/EditSchedule.xaml
+++ b/HFUTCourseSimulation/Dialog/EditSchedule.xaml
@@ -21,17 +21,17 @@
                 <TextBlock Text="周设置" FontWeight="Bold" Margin="0,10,0,0"/>
                 <TextBlock Text="输入格式：开始周-结束周 或 周号1,周号2,周号3" Margin="0,5,0,0"/>
                 <TextBlock Text="例如：3-11 或 1,3,5" Margin="0,5,0,0"/>
-                <TextBox Text="{Binding week, Mode=TwoWay}" Width="200" HorizontalAlignment="Left" Padding="5" Margin="0,5,0,0"/>
+                <TextBox Text="{Binding Week, Mode=TwoWay}" Width="200" HorizontalAlignment="Left" Padding="5" Margin="0,5,0,0"/>
 
                 <TextBlock Text="课程星期" FontWeight="Bold" Margin="0,10,0,0"/>
                 <TextBlock Text="输入格式：开始星期-结束星期 或 星期号1,星期号2,星期号3 或 星期号" Margin="0,5,0,0"/>
                 <TextBlock Text="例如：3-7 或 1,3,5 或 6" Margin="0,5,0,0"/>
-                <TextBox Text="{Binding day, Mode=TwoWay}" Width="200" HorizontalAlignment="Left" Padding="5" Margin="0,5,0,0"/>
+                <TextBox Text="{Binding Day, Mode=TwoWay}" Width="200" HorizontalAlignment="Left" Padding="5" Margin="0,5,0,0"/>
 
                 <TextBlock Text="当日课程节次" FontWeight="Bold" Margin="0,10,0,0"/>
                 <TextBlock Text="输入格式：开始节次-结束节次 或 节次号1,节次号2,节次号3" Margin="0,5,0,0"/>
                 <TextBlock Text="例如：3-11 或 1,3,5" Margin="0,5,0,0"/>
-                <TextBox Text="{Binding index, Mode=TwoWay}" Width="200" HorizontalAlignment="Left" Padding="5" Margin="0,5,0,0"/>
+                <TextBox Text="{Binding Index, Mode=TwoWay}" Width="200" HorizontalAlignment="Left" Padding="5" Margin="0,5,0,0"/>
             </StackPanel>
         </ScrollViewer>
     </Grid>
diff --git a/HFUTCourseSimulation/HFUTCourseSimulation.csproj b/HFUTCourseSimulation/HFUTCourseSimulation.csproj
index 39b2f89..a7f0a9e 100644
--- a/HFUTCourseSimulation/HFUTCourseSimulation.csproj
+++ b/HFUTCourseSimulation/HFUTCourseSimulation.csproj
@@ -85,6 +85,7 @@
     <Compile Include="ImageExport.cs" />
     <Compile Include="Kernel\Context.cs" />
     <Compile Include="Kernel\MsgRecorder.cs" />
+    <Compile Include="Kernel\OldUserData\V1.cs" />
     <Compile Include="Kernel\SimData.cs" />
     <Compile Include="Kernel\UserData.cs" />
     <Compile Include="Simulation.xaml.cs">
@@ -92,7 +93,8 @@
     </Compile>
     <Compile Include="SimulationCore.cs" />
     <Compile Include="SimulationItem.cs" />
-    <Compile Include="Util\ColorPreset.cs" />
+    <Compile Include="Util\ColorPair.cs" />
+    <Compile Include="Util\ColorTrans.cs" />
     <Compile Include="Util\Win32Dialog.cs" />
     <Page Include="Dialog\EditCourse.xaml">
       <SubType>Designer</SubType>
diff --git a/HFUTCourseSimulation/ImageExport.cs b/HFUTCourseSimulation/ImageExport.cs
index db807b0..8c3bf65 100644
--- a/HFUTCourseSimulation/ImageExport.cs
+++ b/HFUTCourseSimulation/ImageExport.cs
@@ -89,7 +89,7 @@ namespace HFUTCourseSimulation {
                     var cellx = courses.Start.week - 1;
                     var celly = courses.Start.index - 1;
                     //background
-                    cellBrush = new SolidBrush(courses.BkColor.ConvertWPFColor());
+                    cellBrush = new SolidBrush(Util.ColorTrans.ToWpfColor(courses.BkColor));
                     graphics.FillRectangle(cellBrush, cellx * BodyCellWidth, celly * BodyCellHeight, BodyCellWidth, BodyCellHeight * courses.Span);
 
                     //draw text
@@ -113,21 +113,4 @@ namespace HFUTCourseSimulation {
 
     }
 
-    public static class WPFColorConvert {
-        public static System.Drawing.Color ConvertWPFColor(this System.Windows.Media.Color c) {
-            return System.Drawing.Color.FromArgb(c.A, c.R, c.G, c.B);
-        }
-        public static System.Windows.Media.Color ConvertWinformColor(this System.Drawing.Color c) {
-            return System.Windows.Media.Color.FromArgb(c.A, c.R, c.G, c.B);
-        }
-        public static int ColorToInt(this System.Windows.Media.Color c) {
-            return (c.R << 16) + (c.G << 8) + c.B;
-        }
-        public static System.Windows.Media.Color IntToColor(this int num) {
-            var cache = (num >> 16) << 16;
-            var cache2 = (num >> 8) << 8;
-            return System.Windows.Media.Color.FromArgb(255, (byte)(num >> 16), (byte)((cache2 - cache) >> 8), (byte)(num - cache2));
-        }
-    }
-
 }
diff --git a/HFUTCourseSimulation/Kernel/OldUserData/V1.cs b/HFUTCourseSimulation/Kernel/OldUserData/V1.cs
new file mode 100644
index 0000000..879b4ed
--- /dev/null
+++ b/HFUTCourseSimulation/Kernel/OldUserData/V1.cs
@@ -0,0 +1,126 @@
+using HFUTCourseSimulation.Kernel.UserData;
+using HFUTCourseSimulation.Util;
+using Newtonsoft.Json;
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Media;
+
+namespace HFUTCourseSimulation.Kernel.OldUserData.V1 {
+
+    public class Semester {
+        public Semester() {
+            this.Courses = new List<CourseItem>();
+            StartDate = DateTime.Today;
+            WeekCount = 1;
+        }
+
+        [JsonProperty("StartDate")]
+        [JsonConverter(typeof(CustomDateTimeConverter))]
+        public DateTime StartDate { get; set; }
+        [JsonProperty("WeekCount")]
+        public int WeekCount { get; set; }
+        [JsonProperty("Courses")]
+        public List<CourseItem> Courses { get; set; }
+
+        public UserData.Semester ToLatest() {
+            return new UserData.Semester() {
+                StartDate = StartDate,
+                WeekCount = WeekCount.ToString(),
+                // Other properties keep original value.
+                Courses = Courses.Select((item) => item.ToLatest()).ToList()
+            };
+        }
+    }
+
+    public class CourseItem {
+        public CourseItem() {
+            BkColor = Colors.LightBlue;
+            this.Schedule = new List<ScheduleItem>();
+        }
+
+        [JsonProperty("Name")]
+        public string Name { get; set; }
+        [JsonProperty("Description")]
+        public string Description { get; set; }
+        [JsonProperty("BkColor")]
+        [JsonConverter(typeof(CustomColorConverter))]
+        public Color BkColor { get; set; }
+        [JsonProperty("Schedule")]
+        public List<ScheduleItem> Schedule { get; set; }
+
+        public UserData.Course ToLatest() {
+            return new UserData.Course() {
+                Name = Name,
+                Description = Description,
+                Color = new UserData.ColorPair() {
+                    Foreground = System.Drawing.Color.White,
+                    Background = ColorTrans.ToWpfColor(BkColor)
+                },
+                Schedules = Schedule.Select((item) => item.ToLatest()).ToList()
+            };
+        }
+    }
+
+    public class ScheduleItem {
+        [JsonProperty("Week")]
+        public string Week { get; set; }
+        [JsonProperty("Day")]
+        public string Day { get; set; }
+        [JsonProperty("Index")]
+        public string Index { get; set; }
+
+        public UserData.Schedule ToLatest() {
+            return new UserData.Schedule() {
+                Week = Week,
+                Day = Day,
+                Index = Index
+            };
+        }
+    }
+
+    internal class CustomDateTimeConverter : JsonConverter<DateTime> {
+        public override DateTime ReadJson(JsonReader reader, Type objectType, DateTime existingValue, bool hasExistingValue, JsonSerializer serializer) {
+            if (reader.TokenType == JsonToken.String) {
+                var value = reader.Value as string;
+                if (DateTime.TryParse(value, out DateTime rv)) {
+                    return rv;
+                } else {
+                    throw new JsonSerializationException($"given string can not be parsed as DateTime: {value}");
+                }
+            } else {
+                throw new JsonSerializationException($"expect a string but got {reader.TokenType}");
+            }
+        }
+
+        public override void WriteJson(JsonWriter writer, DateTime value, JsonSerializer serializer) {
+            writer.WriteValue(value.ToString());
+        }
+    }
+
+    internal class CustomColorConverter : JsonConverter<Color> {
+        public override Color ReadJson(JsonReader reader, Type objectType, Color existingValue, bool hasExistingValue, JsonSerializer serializer) {
+            if (reader.TokenType == JsonToken.Integer) {
+                var argb = Convert.ToInt32(reader.Value);
+                // Read color and force set its Alpha to zero.
+                var rv = Util.ColorTrans.ToWinformColor(argb);
+                rv.A = 255;
+                return rv;
+            } else {
+                throw new JsonSerializationException($"expect a integer but got {reader.TokenType}");
+            }
+        }
+
+        public override void WriteJson(JsonWriter writer, Color value, JsonSerializer serializer) {
+            // Reset its alpha to zero when saving.
+            var copied = value;
+            copied.A = 255;
+            writer.WriteValue(Util.ColorTrans.ToInt(copied));
+        }
+    }
+
+
+}
diff --git a/HFUTCourseSimulation/Kernel/UserData.cs b/HFUTCourseSimulation/Kernel/UserData.cs
index 147f780..80af443 100644
--- a/HFUTCourseSimulation/Kernel/UserData.cs
+++ b/HFUTCourseSimulation/Kernel/UserData.cs
@@ -1,5 +1,4 @@
 using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
 using System;
 using System.Collections.Generic;
 using System.Drawing;
@@ -7,6 +6,7 @@ using System.Globalization;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using HFUTCourseSimulation.Util;
 
 namespace HFUTCourseSimulation.Kernel.UserData {
 
@@ -15,13 +15,13 @@ namespace HFUTCourseSimulation.Kernel.UserData {
     /// </summary>
     public class Semester {
         public Semester() {
-            startDate = DateTime.Today;
-            weekCount = 20.ToString();
-            indexCount = 11.ToString();
-            breakfastAt = 0.ToString();
-            lunchAt = 4.ToString();
-            dinnerAt = 8.ToString();
-            courses = new List<Course>();
+            StartDate = DateTime.Today;
+            WeekCount = 20.ToString();
+            IndexCount = 11.ToString();
+            BreakfastAt = 0.ToString();
+            LunchAt = 4.ToString();
+            DinnerAt = 8.ToString();
+            Courses = new List<Course>();
         }
 
         /// <summary>
@@ -29,100 +29,100 @@ namespace HFUTCourseSimulation.Kernel.UserData {
         /// </summary>
         [JsonProperty("start_date")]
         [JsonConverter(typeof(CustomDateTimeConverter))]
-        public DateTime startDate { get; set; }
+        public DateTime StartDate { get; set; }
         /// <summary>
         /// 教学周个数
         /// </summary>
         [JsonProperty("week_count")]
-        public string weekCount { get; set; }
+        public string WeekCount { get; set; }
         /// <summary>
         /// 每天课程的节次数
         /// </summary>
         [JsonProperty("index_count")]
-        public string indexCount { get; set; }
+        public string IndexCount { get; set; }
         /// <summary>
         /// 早餐插入在第几节次后
         /// </summary>
         [JsonProperty("breakfast_at")]
-        public string breakfastAt { get; set; }
+        public string BreakfastAt { get; set; }
         /// <summary>
         /// 午餐插入在第几节次后
         /// </summary>
         [JsonProperty("lunch_at")]
-        public string lunchAt { get; set; }
+        public string LunchAt { get; set; }
         /// <summary>
         /// 晚餐插入在第几节次后
         /// </summary>
         [JsonProperty("dinner_at")]
-        public string dinnerAt { get; set; }
+        public string DinnerAt { get; set; }
         /// <summary>
         /// 课程列表
         /// </summary>
         [JsonProperty("courses")]
-        public List<Course> courses { get; set; }
+        public List<Course> Courses { get; set; }
     }
 
     public class Course {
         public Course() {
-            name = "";
-            description = "";
-            color = Util.ColorPreset.MdColors.Indigo;
-            schedules = new List<Schedule>();
+            Name = "";
+            Description = "";
+            Color = ColorTrans.ToStorageColor(Util.ColorPreset.MdColors.Indigo);
+            Schedules = new List<Schedule>();
         }
 
         /// <summary>
         /// 课程的名称
         /// </summary>
         [JsonProperty("name")]
-        public string name { get; set; }
+        public string Name { get; set; }
         /// <summary>
         /// 课程的说明，例如教室位置，教师姓名等。
         /// </summary>
         [JsonProperty("description")]
-        public string description { get; set; }
+        public string Description { get; set; }
         /// <summary>
         /// 课程的颜色
         /// </summary>
         [JsonProperty("color")]
-        public ColorPair color { get; set; }
+        public ColorPair Color { get; set; }
         /// <summary>
         /// 课程的所有安排
         /// </summary>
         [JsonProperty("schedules")]
-        public List<Schedule> schedules { get; set; }
+        public List<Schedule> Schedules { get; set; }
     }
 
     public class Schedule {
         public Schedule() {
-            week = "";
-            day = "";
-            index = "";
+            Week = "";
+            Day = "";
+            Index = "";
         }
 
         /// <summary>
         /// 安排在哪些周
         /// </summary>
         [JsonProperty("week")]
-        public string week { get; set; }
+        public string Week { get; set; }
         /// <summary>
         /// 安排在周的星期几
         /// </summary>
         [JsonProperty("day")]
-        public string day { get; set; }
+        public string Day { get; set; }
         /// <summary>
         /// 安排在这些日子的哪些节次
         /// </summary>
         [JsonProperty("index")]
-        public string index { get; set; }
+        public string Index { get; set; }
     }
 
     /// <summary>
-    /// 代表一个颜色对，包括前景色和背景色
+    /// 存储时所用的颜色对，与辅助类里的颜色对有所区别。
     /// </summary>
-    public struct ColorPair {
-        public ColorPair(Color foreground, Color background) {
-            this.foreground = foreground;
-            this.background = background;
+    public class ColorPair {
+        public ColorPair() {
+            Foreground = Color.Black;
+            Background = Color.White;
         }
 
         /// <summary>
@@ -130,13 +130,13 @@ namespace HFUTCourseSimulation.Kernel.UserData {
         /// </summary>
         [JsonProperty("foreground")]
         [JsonConverter(typeof(CustomColorConverter))]
-        public Color foreground { get; set; }
+        public Color Foreground { get; set; }
         /// <summary>
         /// 背景色
         /// </summary>
         [JsonProperty("background")]
         [JsonConverter(typeof(CustomColorConverter))]
-        public Color background { get; set; }
+        public Color Background { get; set; }
     }
 
     internal class CustomDateTimeConverter : JsonConverter<DateTime> {
diff --git a/HFUTCourseSimulation/MainWindow.xaml b/HFUTCourseSimulation/MainWindow.xaml
index d0fae36..8802353 100644
--- a/HFUTCourseSimulation/MainWindow.xaml
+++ b/HFUTCourseSimulation/MainWindow.xaml
@@ -45,28 +45,28 @@
                 <ScrollViewer>
                     <StackPanel Orientation="Vertical" Margin="10,0,10,0">
                         <TextBlock Text="起始日期（教学第一周星期一的日期）" Margin="0,20,0,0"/>
-                        <DatePicker SelectedDate="{Binding startDate}" Height="25" Width="200" Margin="0,5,0,0" HorizontalAlignment="Left"/>
+                        <DatePicker SelectedDate="{Binding StartDate}" Height="25" Width="200" Margin="0,5,0,0" HorizontalAlignment="Left"/>
                         
                         <TextBlock Text="本学期教学周数" Margin="0,20,0,0"/>
-                        <TextBox Text="{Binding weekCount, Mode=TwoWay}" Width="200" Padding="5" Margin="0,5,0,0" HorizontalAlignment="Left"/>
+                        <TextBox Text="{Binding WeekCount, Mode=TwoWay}" Width="200" Padding="5" Margin="0,5,0,0" HorizontalAlignment="Left"/>
                         
                         <TextBlock Text="每天节次数" Margin="0,20,0,0"/>
-                        <TextBox Text="{Binding indexCount, Mode=TwoWay}" Width="200" Padding="5" Margin="0,5,0,0" HorizontalAlignment="Left"/>
+                        <TextBox Text="{Binding IndexCount, Mode=TwoWay}" Width="200" Padding="5" Margin="0,5,0,0" HorizontalAlignment="Left"/>
                         <TextBlock Text="早餐在哪个节次后" Margin="0,10,0,0"/>
-                        <TextBox Text="{Binding breakfastAt, Mode=TwoWay}" Width="200" Padding="5" Margin="0,5,0,0" HorizontalAlignment="Left"/>
+                        <TextBox Text="{Binding BreakfastAt, Mode=TwoWay}" Width="200" Padding="5" Margin="0,5,0,0" HorizontalAlignment="Left"/>
                         <TextBlock Text="午餐在哪个节次后" Margin="0,10,0,0"/>
-                        <TextBox Text="{Binding lunchAt, Mode=TwoWay}" Width="200" Padding="5" Margin="0,5,0,0" HorizontalAlignment="Left"/>
+                        <TextBox Text="{Binding LunchAt, Mode=TwoWay}" Width="200" Padding="5" Margin="0,5,0,0" HorizontalAlignment="Left"/>
                         <TextBlock Text="晚餐在哪个节次后" Margin="0,10,0,0"/>
-                        <TextBox Text="{Binding dinnerAt, Mode=TwoWay}" Width="200" Padding="5" Margin="0,5,0,0" HorizontalAlignment="Left"/>
+                        <TextBox Text="{Binding DinnerAt, Mode=TwoWay}" Width="200" Padding="5" Margin="0,5,0,0" HorizontalAlignment="Left"/>
                     </StackPanel>
                 </ScrollViewer>
             </TabItem>
             <TabItem Header="课程设置" Padding="5">
-                <ListBox x:Name="uiCoursesList" ItemsSource="{Binding courses}" Margin="10" MouseDoubleClick="uiCoursesList_MouseDoubleClick">
+                <ListBox x:Name="uiCoursesList" ItemsSource="{Binding Courses}" Margin="10" MouseDoubleClick="uiCoursesList_MouseDoubleClick">
                     <ListBox.ItemTemplate>
                         <DataTemplate>
                             <Grid d:DataContext="{d:DesignInstance userdata:Course}">
-                                <TextBlock Text="{Binding name}"/>
+                                <TextBlock Text="{Binding Name, Mode=OneWay}"/>
                             </Grid>
                         </DataTemplate>
                     </ListBox.ItemTemplate>
diff --git a/HFUTCourseSimulation/MainWindow.xaml.cs b/HFUTCourseSimulation/MainWindow.xaml.cs
index b4e0a1a..ff31443 100644
--- a/HFUTCourseSimulation/MainWindow.xaml.cs
+++ b/HFUTCourseSimulation/MainWindow.xaml.cs
@@ -128,6 +128,21 @@ namespace HFUTCourseSimulation {
         }
 
         private void uiMenuOpenV1_Click(object sender, RoutedEventArgs e) {
+            // Fetch file path.
+            var filepath = Util.Win32Dialog.OpenSemester();
+            if (filepath is null) return;
+
+            // Try to read file.
+            try {
+                using (var fs = new StreamReader(filepath, Encoding.UTF8)) {
+                    var obj = JsonConvert.DeserializeObject<Kernel.OldUserData.V1.Semester>(fs.ReadToEnd());
+                    context.currentSemester = obj.ToLatest();
+                    context.currentFilePath = filepath;
+                }
+            } catch (Exception ex) {
+                Util.Win32Dialog.Error(ex.ToString(), "打开文件时出错");
+                return;
+            }
 
             // Update UI and data source
             UpdateUiLayout();
diff --git a/HFUTCourseSimulation/SimulationCore.cs b/HFUTCourseSimulation/SimulationCore.cs
index 99a0956..e3b9247 100644
--- a/HFUTCourseSimulation/SimulationCore.cs
+++ b/HFUTCourseSimulation/SimulationCore.cs
@@ -37,7 +37,7 @@ namespace HFUTCourseSimulation {
                                 if (this.itemDict.Keys.Contains(vectorCache)) {
                                     ErrorList.Add($"课程冲突：无法将{item.Name}安排到 {weekItem}周，星期{dayItem}，第{indexItem}节。因为此处已被{itemDict[vectorCache].Name}占据");
                                 } else {
-                                    itemDict.Add(vectorCache, new SimulationItem() { Name = item.Name, Desc = item.Description, BkColor = item.BkColor.IntToColor() });
+                                    itemDict.Add(vectorCache, new SimulationItem() { Name = item.Name, Desc = item.Description, BkColor = Util.ColorTrans.ToWinformColor(item.BkColor) });
                                 }
                             }
                         }
diff --git a/HFUTCourseSimulation/Util/ColorPair.cs b/HFUTCourseSimulation/Util/ColorPair.cs
new file mode 100644
index 0000000..eab371a
--- /dev/null
+++ b/HFUTCourseSimulation/Util/ColorPair.cs
@@ -0,0 +1,61 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace HFUTCourseSimulation.Util {
+
+    /// <summary>
+    /// 代表一个颜色对，包括前景色和背景色
+    /// </summary>
+    public struct ColorPair {
+        public ColorPair(Color foreground, Color background) {
+            this.Foreground = foreground;
+            this.Background = background;
+        }
+
+        /// <summary>
+        /// 前景色（文本的颜色）
+        /// </summary>
+        public Color Foreground { get; set; }
+        /// <summary>
+        /// 背景色
+        /// </summary>
+        public Color Background { get; set; }
+    }
+
+    namespace ColorPreset {
+
+        /// <summary>
+        /// Material Design颜色合集
+        /// </summary>
+        public static class MdColors {
+            private static Color LightText => Color.White;
+            private static Color DarkText => Color.FromArgb(33, 33, 33);
+
+            public static ColorPair Red => new ColorPair(LightText, Color.FromArgb(244, 67, 54));
+            public static ColorPair Pink => new ColorPair(LightText, Color.FromArgb(233, 30, 99));
+            public static ColorPair Purple => new ColorPair(LightText, Color.FromArgb(156, 39, 176));
+            public static ColorPair DeepPurple => new ColorPair(LightText, Color.FromArgb(103, 58, 183));
+            public static ColorPair Indigo => new ColorPair(LightText, Color.FromArgb(63, 81, 181));
+            public static ColorPair Blue => new ColorPair(LightText, Color.FromArgb(33, 150, 243));
+            public static ColorPair LightBlue => new ColorPair(LightText, Color.FromArgb(3, 169, 244));
+            public static ColorPair Cyan => new ColorPair(LightText, Color.FromArgb(0, 188, 212));
+            public static ColorPair Teal => new ColorPair(LightText, Color.FromArgb(0, 150, 136));
+            public static ColorPair Green => new ColorPair(LightText, Color.FromArgb(76, 175, 80));
+            public static ColorPair LightGreen => new ColorPair(DarkText, Color.FromArgb(139, 195, 74));
+            public static ColorPair Lime => new ColorPair(DarkText, Color.FromArgb(205, 220, 57));
+            public static ColorPair Yellow => new ColorPair(DarkText, Color.FromArgb(255, 235, 59));
+            public static ColorPair Amber => new ColorPair(DarkText, Color.FromArgb(255, 193, 7));
+            public static ColorPair Orange => new ColorPair(DarkText, Color.FromArgb(255, 152, 0));
+            public static ColorPair DeepOrange => new ColorPair(LightText, Color.FromArgb(255, 87, 34));
+            public static ColorPair Brown => new ColorPair(LightText, Color.FromArgb(121, 85, 72));
+            public static ColorPair Grey => new ColorPair(DarkText, Color.FromArgb(158, 158, 158));
+            public static ColorPair BlueGrey => new ColorPair(LightText, Color.FromArgb(96, 125, 139));
+        }
+
+    }
+
+}
diff --git a/HFUTCourseSimulation/Util/ColorPreset.cs b/HFUTCourseSimulation/Util/ColorPreset.cs
deleted file mode 100644
index 9fe3b5d..0000000
--- a/HFUTCourseSimulation/Util/ColorPreset.cs
+++ /dev/null
@@ -1,39 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using System.Drawing;
-using HFUTCourseSimulation.Kernel.UserData;
-
-namespace HFUTCourseSimulation.Util.ColorPreset {
-
-    /// <summary>
-    /// Material Design颜色合集
-    /// </summary>
-    public static class MdColors {
-        private static Color LightText => Color.White;
-        private static Color DarkText => Color.FromArgb(33, 33, 33);
-
-        public static ColorPair Red => new ColorPair(LightText, Color.FromArgb(244, 67, 54));
-        public static ColorPair Pink => new ColorPair(LightText, Color.FromArgb(233, 30, 99));
-        public static ColorPair Purple => new ColorPair(LightText, Color.FromArgb(156, 39, 176));
-        public static ColorPair DeepPurple => new ColorPair(LightText, Color.FromArgb(103, 58, 183));
-        public static ColorPair Indigo => new ColorPair(LightText, Color.FromArgb(63, 81, 181));
-        public static ColorPair Blue => new ColorPair(LightText, Color.FromArgb(33, 150, 243));
-        public static ColorPair LightBlue => new ColorPair(LightText, Color.FromArgb(3, 169, 244));
-        public static ColorPair Cyan => new ColorPair(LightText, Color.FromArgb(0, 188, 212));
-        public static ColorPair Teal => new ColorPair(LightText, Color.FromArgb(0, 150, 136));
-        public static ColorPair Green => new ColorPair(LightText, Color.FromArgb(76, 175, 80));
-        public static ColorPair LightGreen => new ColorPair(DarkText, Color.FromArgb(139, 195, 74));
-        public static ColorPair Lime => new ColorPair(DarkText, Color.FromArgb(205, 220, 57));
-        public static ColorPair Yellow => new ColorPair(DarkText, Color.FromArgb(255, 235, 59));
-        public static ColorPair Amber => new ColorPair(DarkText, Color.FromArgb(255, 193, 7));
-        public static ColorPair Orange => new ColorPair(DarkText, Color.FromArgb(255, 152, 0));
-        public static ColorPair DeepOrange => new ColorPair(LightText, Color.FromArgb(255, 87, 34));
-        public static ColorPair Brown => new ColorPair(LightText, Color.FromArgb(121, 85, 72));
-        public static ColorPair Grey => new ColorPair(DarkText, Color.FromArgb(158, 158, 158));
-        public static ColorPair BlueGrey => new ColorPair(LightText, Color.FromArgb(96, 125, 139));
-    }
-
-}
diff --git a/HFUTCourseSimulation/Util/ColorTrans.cs b/HFUTCourseSimulation/Util/ColorTrans.cs
new file mode 100644
index 0000000..4ade058
--- /dev/null
+++ b/HFUTCourseSimulation/Util/ColorTrans.cs
@@ -0,0 +1,68 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+using WinformColor = System.Windows.Media.Color;
+using WpfColor = System.Drawing.Color;
+
+using StorageColorPair = HFUTCourseSimulation.Kernel.UserData.ColorPair;
+using RuntimeColorPair = HFUTCourseSimulation.Util.ColorPair;
+
+namespace HFUTCourseSimulation.Util {
+
+    public static class ColorTrans {
+
+        #region Color Transform
+
+        public static WpfColor ToWpfColor(int argb) {
+            return WpfColor.FromArgb(argb);
+        }
+
+        public static WpfColor ToWpfColor(WinformColor c) {
+            return WpfColor.FromArgb(c.A, c.R, c.G, c.B);
+        }
+
+        public static WinformColor ToWinformColor(int _argb) {
+            var argb = (uint)_argb;
+            var a = (argb & 0xff000000) >> 24;
+            var r = (argb & 0x00ff0000) >> 16;
+            var g = (argb & 0x0000ff00) >> 8;
+            var b = (argb & 0x000000ff);
+            return WinformColor.FromArgb((byte)a, (byte)r, (byte)g, (byte)b);
+        }
+
+        public static WinformColor ToWinformColor(WpfColor c) {
+            return WinformColor.FromArgb(c.A, c.R, c.G, c.B);
+        }
+
+        public static int ToInt(WpfColor c) {
+            return c.ToArgb();
+        }
+
+        public static int ToInt(WinformColor c) {
+            uint argb = 0;
+            argb |= c.A; argb <<= 8;
+            argb |= c.R; argb <<= 8;
+            argb |= c.G; argb <<= 8;
+            argb |= c.B;
+            return (int)argb;
+        }
+
+        #endregion
+
+        #region Color Pair Transform
+
+        public static StorageColorPair ToStorageColor(RuntimeColorPair cp) {
+            return new StorageColorPair() { Foreground = cp.Foreground, Background = cp.Background };
+        }
+
+        public static RuntimeColorPair ToRuntimeColor(StorageColorPair cp) {
+            return new RuntimeColorPair(cp.Foreground, cp.Background);
+        }
+
+        #endregion
+
+    }
+}