diff --git a/DanmakuPlayer/AppConfig.cs b/DanmakuPlayer/AppConfig.cs
index 2526f63..a8158b1 100644
--- a/DanmakuPlayer/AppConfig.cs
+++ b/DanmakuPlayer/AppConfig.cs
@@ -115,8 +115,8 @@ public AppConfig()
     /// <summary>
     /// 弹幕描边颜色
     /// </summary>
-    /// <remarks>default: 0xFFA9A9A9</remarks>
-    public uint DanmakuStrokeColor { get; set; } = 0xFFA9A9A9;
+    /// <remarks>default: 0xFF000000</remarks>
+    public uint DanmakuStrokeColor { get; set; } = 0xFF000000;
 
     /// <summary>
     /// 转换大会员彩色弹幕
diff --git a/DanmakuPlayer/Views/Controls/SettingsDialog.xaml b/DanmakuPlayer/Views/Controls/SettingsDialog.xaml
index d66b710..9366e9d 100644
--- a/DanmakuPlayer/Views/Controls/SettingsDialog.xaml
+++ b/DanmakuPlayer/Views/Controls/SettingsDialog.xaml
@@ -3,7 +3,6 @@
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
     xmlns:controls="using:CommunityToolkit.WinUI.Controls"
-    xmlns:controls1="using:WinUI3Utilities.Controls"
     xmlns:converters="using:DanmakuPlayer.Views.Converters"
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
     xmlns:fluent="using:FluentIcons.WinUI"
@@ -154,7 +153,7 @@
                             x:Uid="/SettingsDialog/DanmakuStrokeColorCard"
                             HeaderIcon="{fluent:SymbolIcon Symbol=Eyedropper}"
                             IsEnabled="{x:Bind local:C.IsNotZero(Vm.DanmakuStrokeWidth), Mode=OneWay}">
-                            <controls:ColorPickerButton SelectedColor="{x:Bind local:C.ToAlphaColor(Vm.DanmakuStrokeColor), BindBack=local:C.ToAlphaUInt, Mode=TwoWay}">
+                            <controls:ColorPickerButton SelectedColor="{x:Bind local:C.ToAlphaColor(Vm.DanmakuStrokeColor), BindBack=ColorBindBack, Mode=TwoWay}">
                                 <controls:ColorPickerButton.ColorPickerStyle>
                                     <Style TargetType="controls:ColorPicker">
                                         <Setter Property="IsAlphaEnabled" Value="True" />
diff --git a/DanmakuPlayer/Views/Controls/SettingsDialog.xaml.cs b/DanmakuPlayer/Views/Controls/SettingsDialog.xaml.cs
index 9189ff5..070f6c9 100644
--- a/DanmakuPlayer/Views/Controls/SettingsDialog.xaml.cs
+++ b/DanmakuPlayer/Views/Controls/SettingsDialog.xaml.cs
@@ -8,6 +8,7 @@
 using System.Threading.Tasks;
 using Windows.ApplicationModel.DataTransfer;
 using Windows.System;
+using Windows.UI;
 using CommunityToolkit.Mvvm.ComponentModel;
 using DanmakuPlayer.Services;
 using DanmakuPlayer.Views.ViewModels;
@@ -83,6 +84,8 @@ private void CompareChanges(AppConfig before, AppConfig after)
             HttpClientHelper.ShouldRefreshHeader = true;
     }
 
+    private void ColorBindBack(Color color) => Vm.DanmakuStrokeColor = C.ToAlphaUInt(color);
+
     #region 事件处理
 
     private async void NavigateUriTapped(object sender, TappedRoutedEventArgs e)