diff --git a/QuickLook/Translations.config b/QuickLook/Translations.config
index 0c9ad9d..b0630e8 100644
--- a/QuickLook/Translations.config
+++ b/QuickLook/Translations.config
@@ -175,6 +175,7 @@
     <MW_OpenWithMenu>Öffnen mit ...</MW_OpenWithMenu>
     <MW_Run>{0} ausführen</MW_Run>
     <MW_Share>Freigeben</MW_Share>
+    <MW_Reload>Reload</MW_Reload>
     <Icon_RunAtStartup>Beim Systemstart &amp;ausführen</Icon_RunAtStartup>
     <Icon_ToolTip>QuickLook v{0}</Icon_ToolTip>
     <Icon_CheckUpdate>Nach &amp;Updates suchen</Icon_CheckUpdate>
@@ -208,6 +209,7 @@
     <MW_OpenWithMenu>Open With Menu</MW_OpenWithMenu>
     <MW_Run>Run {0}</MW_Run>
     <MW_Share>Share</MW_Share>
+    <MW_Reload>Reload</MW_Reload>
     <Icon_RunAtStartup>Run at &amp;Startup</Icon_RunAtStartup>
     <Icon_ToolTip>QuickLook v{0}</Icon_ToolTip>
     <Icon_CheckUpdate>Check for &amp;Updates...</Icon_CheckUpdate>
@@ -241,6 +243,7 @@
     <MW_OpenWithMenu>Abrir Con Menu</MW_OpenWithMenu>
     <MW_Run>Iniciar {0}</MW_Run>
     <MW_Share>Compartir</MW_Share>
+    <MW_Reload>Reload</MW_Reload>
     <Icon_RunAtStartup>Iniciar con el &amp;sistema</Icon_RunAtStartup>
     <Icon_ToolTip>QuickLook v{0}</Icon_ToolTip>
     <Icon_CheckUpdate>Buscar &amp;Actualizaciones...</Icon_CheckUpdate>
@@ -328,6 +331,7 @@
     <MW_OpenWithMenu>メニューから選択して開く</MW_OpenWithMenu>
     <MW_Run>{0} を起動</MW_Run>
     <MW_Share>シェア</MW_Share>
+    <MW_Reload>Reload</MW_Reload>
     <Icon_RunAtStartup>スタートアップ時に起動</Icon_RunAtStartup>
     <Icon_ToolTip>QuickLook v{0}</Icon_ToolTip>
     <Icon_CheckUpdate>更新を確認する... (&amp;U)</Icon_CheckUpdate>
@@ -411,6 +415,7 @@
     <MW_OpenWith>Otwórz w {0}</MW_OpenWith>
     <MW_Run>Uruchom {0}</MW_Run>
     <MW_Share>Udostępnij</MW_Share>
+    <MW_Reload>Reload</MW_Reload>
     <Icon_RunAtStartup>Uruchamiaj automatycznie z systemem</Icon_RunAtStartup>
     <Icon_ToolTip>QuickLook v{0}</Icon_ToolTip>
     <Icon_CheckUpdate>Sprawdź &amp;aktualizacje...</Icon_CheckUpdate>
@@ -443,6 +448,7 @@
     <MW_OpenWithMenu>Menu abrir com</MW_OpenWithMenu>
     <MW_Run>Executar {0}</MW_Run>
     <MW_Share>Compartilhar</MW_Share>
+    <MW_Reload>Reload</MW_Reload>
     <Icon_RunAtStartup>Executar na &amp;Inicialização</Icon_RunAtStartup>
     <Icon_ToolTip>QuickLook v{0}</Icon_ToolTip>
     <Icon_CheckUpdate>Procurar por &amp;Atualizações...</Icon_CheckUpdate>
@@ -499,6 +505,7 @@
     <MW_StayTop>Поверх всех окон</MW_StayTop>
     <MW_PreventClosing>Закрепить</MW_PreventClosing>
     <MW_Share>Поделиться</MW_Share>
+    <MW_Reload>Reload</MW_Reload>
     <Icon_RunAtStartup>Автозапуск</Icon_RunAtStartup>
     <Icon_ToolTip>QuickLook v{0}</Icon_ToolTip>
     <Icon_CheckUpdate>Проверить &amp;обновления…</Icon_CheckUpdate>
@@ -558,6 +565,7 @@
     <MW_OpenWithMenu>Відкрити за допомогою меню</MW_OpenWithMenu>
     <MW_Run>Запустити {0}</MW_Run>
     <MW_Share>Поширити</MW_Share>
+    <MW_Reload>Reload</MW_Reload>
     <Icon_RunAtStartup>Запускати під час &amp;старту</Icon_RunAtStartup>
     <Icon_ToolTip>QuickLook v{0}</Icon_ToolTip>
     <Icon_CheckUpdate>Перевірити наявність &amp;оновлення…</Icon_CheckUpdate>
@@ -616,6 +624,7 @@
     <MW_OpenWithMenu>从菜单选择打开</MW_OpenWithMenu>
     <MW_Run>运行 {0}</MW_Run>
     <MW_Share>分享</MW_Share>
+    <MW_Reload>Reload</MW_Reload>
     <Icon_RunAtStartup>启动时自动运行 (&amp;S)</Icon_RunAtStartup>
     <Icon_ToolTip>QuickLook v{0}</Icon_ToolTip>
     <Icon_CheckUpdate>检查更新... (&amp;U)</Icon_CheckUpdate>
@@ -649,6 +658,7 @@
     <MW_OpenWithMenu>從選單選擇開啟</MW_OpenWithMenu>
     <MW_Run>執行 {0}</MW_Run>
     <MW_Share>分享</MW_Share>
+    <MW_Reload>Reload</MW_Reload>
     <Icon_RunAtStartup>系統啟動時自動執行 (&amp;S)</Icon_RunAtStartup>
     <Icon_ToolTip>QuickLook v{0}</Icon_ToolTip>
     <Icon_CheckUpdate>檢查更新... (&amp;U)</Icon_CheckUpdate>
diff --git a/QuickLook/ViewWindowManager.cs b/QuickLook/ViewWindowManager.cs
index d9cf2f1..a821a0b 100644
--- a/QuickLook/ViewWindowManager.cs
+++ b/QuickLook/ViewWindowManager.cs
@@ -189,6 +189,16 @@ internal class ViewWindowManager : IDisposable
         }
     }
 
+    public void ReloadPreview()
+    {
+        if (!_viewerWindow.IsVisible || string.IsNullOrEmpty(_invokedPath))
+            return;
+
+        var matchedPlugin = PluginManager.GetInstance().FindMatch(_invokedPath);
+
+        BeginShowNewWindow(_invokedPath, matchedPlugin);
+    }
+
     private void BeginShowNewWindow(string path, IViewer matchedPlugin)
     {
         _viewerWindow.UnloadPlugin();
diff --git a/QuickLook/ViewerWindow.Actions.cs b/QuickLook/ViewerWindow.Actions.cs
index 1d77f58..7305cad 100644
--- a/QuickLook/ViewerWindow.Actions.cs
+++ b/QuickLook/ViewerWindow.Actions.cs
@@ -160,6 +160,12 @@ public partial class ViewerWindow
             Debug.WriteLine(e);
         }
 
+        if (_autoReloadWatcher != null)
+        {
+            _autoReloadWatcher.Dispose();
+            _autoReloadWatcher = null;
+        }
+
         Plugin = null;
 
         _path = string.Empty;
@@ -211,6 +217,17 @@ public partial class ViewerWindow
             Show();
         }
 
+        if (_autoReload && File.Exists(path))
+        {
+            _autoReloadWatcher?.Dispose();
+            _autoReloadWatcher = new FileSystemWatcher(Path.GetDirectoryName(path)!, Path.GetFileName(path)!)
+            {
+                NotifyFilter = NotifyFilters.LastWrite | NotifyFilters.Size
+            };
+            _autoReloadWatcher.Changed += (_, _) => Dispatcher.Invoke(() => ViewWindowManager.GetInstance().ReloadPreview());
+            _autoReloadWatcher.EnableRaisingEvents = true;
+        }
+
         //ShowWindowCaptionContainer(null, null);
         //WindowHelper.SetActivate(new WindowInteropHelper(this), ContextObject.CanFocus);
 
diff --git a/QuickLook/ViewerWindow.xaml b/QuickLook/ViewerWindow.xaml
index e710364..1c3652e 100644
--- a/QuickLook/ViewerWindow.xaml
+++ b/QuickLook/ViewerWindow.xaml
@@ -117,6 +117,11 @@
                             DockPanel.Dock="Right"
                             Style="{StaticResource CaptionButtonStyle}"
                             ToolTip="Open with XXX" />
+                    <Button x:Name="buttonReload"
+                            Content="&#xE72C;"
+                            DockPanel.Dock="Right"
+                            Style="{StaticResource CaptionButtonStyle}"
+                            ToolTip="Reload" />
                     <!--<Button x:Name="buttonOpen" DockPanel.Dock="Right"
                             Style="{StaticResource CaptionTextButtonStyle}"
                             Visibility="{Binding ActualWidth, ElementName=windowCaptionContainer, Converter={StaticResource WidthToVisibilityCollapsedConverter}}">
diff --git a/QuickLook/ViewerWindow.xaml.cs b/QuickLook/ViewerWindow.xaml.cs
index 802e78b..ba98835 100644
--- a/QuickLook/ViewerWindow.xaml.cs
+++ b/QuickLook/ViewerWindow.xaml.cs
@@ -24,6 +24,7 @@ using System.Runtime.InteropServices;
 using System.Windows;
 using System.Windows.Input;
 using System.Windows.Media.Animation;
+using System.IO;
 using Wpf.Ui.Violeta.Controls;
 using Brush = System.Windows.Media.Brush;
 using FontFamily = System.Windows.Media.FontFamily;
@@ -36,6 +37,8 @@ public partial class ViewerWindow : Window
     private Size _customWindowSize = Size.Empty;
     private bool _ignoreNextWindowSizeChange;
     private string _path = string.Empty;
+    private FileSystemWatcher? _autoReloadWatcher;
+    private readonly bool _autoReload;
 
     internal ViewerWindow()
     {
@@ -46,6 +49,8 @@ public partial class ViewerWindow : Window
 
         InitializeComponent();
 
+        _autoReload = SettingHelper.Get("AutoReload", false);
+
         Icon = (App.IsWin10 ? Properties.Resources.app_white_png : Properties.Resources.app_png).ToBitmapSource();
 
         FontFamily = new FontFamily(TranslationHelper.Get("UI_FontFamily", failsafe: "Segoe UI"));
@@ -93,6 +98,11 @@ public partial class ViewerWindow : Window
                 ViewWindowManager.GetInstance().RunAndClosePreview();
         };
 
+        buttonReload.Click += (_, _) =>
+        {
+            ViewWindowManager.GetInstance().ReloadPreview();
+        };
+
         buttonWindowStatus.Click += (_, _) =>
             WindowState = WindowState == WindowState.Maximized ? WindowState.Normal : WindowState.Maximized;
 
@@ -104,6 +114,7 @@ public partial class ViewerWindow : Window
         buttonPin.ToolTip = TranslationHelper.Get("MW_PreventClosing");
         buttonOpenWith.ToolTip = TranslationHelper.Get("MW_OpenWithMenu");
         buttonShare.ToolTip = TranslationHelper.Get("MW_Share");
+        buttonReload.ToolTip = TranslationHelper.Get("MW_Reload", failsafe: "Reload");
     }
 
     public new void Close()
@@ -149,6 +160,19 @@ public partial class ViewerWindow : Window
         {
             Background = (Brush)FindResource("MainWindowBackgroundNoTransparent");
         }
+
+        var customColor = SettingHelper.Get("WindowBackgroundColor", string.Empty, "QuickLook");
+        if (!string.IsNullOrEmpty(customColor))
+        {
+            try
+            {
+                Background = (Brush)new System.Windows.Media.BrushConverter().ConvertFromString(customColor);
+            }
+            catch
+            {
+                // ignore invalid color
+            }
+        }
     }
 
     private void SaveWindowSizeOnSizeChanged(object sender, SizeChangedEventArgs e)