Fix settings navigation and fix flicker on personalizaton nav.

Wino.Core.ViewModels/PersonalizationPageViewModel.cs

@@ -1,6 +1,5 @@
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
-using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using System.Threading.Tasks;
 using CommunityToolkit.Mvvm.ComponentModel;
@@ -127,14 +126,6 @@ public partial class PersonalizationPageViewModel : CoreBaseViewModel
     [ObservableProperty]
     public partial BackdropTypeWrapper SelectedBackdropType { get; set; }
 
-    partial void OnSelectedBackdropTypeChanged(BackdropTypeWrapper value)
-    {
-        if (!isPropChangeDisabled && value != null)
-        {
-            _newThemeService.CurrentBackdropType = value.BackdropType;
-        }
-    }
-
     #endregion
 
     [RelayCommand]
@@ -218,12 +209,9 @@ public partial class PersonalizationPageViewModel : CoreBaseViewModel
         var currentThemeId = _newThemeService.CurrentApplicationThemeId;
         SelectedAppTheme = currentThemeId.HasValue ? AppThemes.Find(a => a.Id == currentThemeId.Value) : null;
 
-        // Set the current backdrop, default to Mica if theme selected, None if custom theme
-        var targetBackdropType = SelectedAppTheme != null && SelectedAppTheme.AppThemeType != AppThemeType.Custom
-            ? _newThemeService.CurrentBackdropType
-            : WindowBackdropType.None;
-
-        SelectedBackdropType = AvailableBackdropTypes?.FirstOrDefault(x => x.BackdropType == targetBackdropType);
+        // Set the current backdrop from service - backdrop should be independent of theme selection
+        var currentBackdropType = _newThemeService.CurrentBackdropType;
+        SelectedBackdropType = AvailableBackdropTypes?.FirstOrDefault(x => x.BackdropType == currentBackdropType);
     }
 
     public override async void OnNavigatedTo(NavigationMode mode, object parameters)
@@ -310,14 +298,11 @@ public partial class PersonalizationPageViewModel : CoreBaseViewModel
             // Set the theme ID, can be null if no theme is selected
             _newThemeService.CurrentApplicationThemeId = SelectedAppTheme?.Id;
 
-            // When a custom/predefined theme is selected, set backdrop to None
-            // When no theme is selected (system theme), keep current backdrop
-            if (SelectedAppTheme != null)
-            {
-                isPropChangeDisabled = true;
-                SelectedBackdropType = AvailableBackdropTypes?.FirstOrDefault(x => x.BackdropType == WindowBackdropType.None);
-                isPropChangeDisabled = false;
-            }
+            // Theme selection should not affect backdrop - they are independent settings
+        }
+        else if (e.PropertyName == nameof(SelectedBackdropType) && SelectedBackdropType != null)
+        {
+            _newThemeService.CurrentBackdropType = SelectedBackdropType.BackdropType;
         }
         else
         {

Wino.Core.WinUI/Services/NewThemeService.cs

@@ -146,6 +146,9 @@ public class NewThemeService : INewThemeService
         get { return currentBackdropType; }
         set
         {
+            // Only update if the backdrop type has actually changed
+            if (currentBackdropType == value) return;
+
             currentBackdropType = value;
             _configurationService.Set(WindowBackdropTypeKey, (int)value);
 
@@ -222,11 +225,14 @@ public class NewThemeService : INewThemeService
                 _ => new MicaBackdrop() { Kind = Microsoft.UI.Composition.SystemBackdrops.MicaKind.Base }
             };
 
-            windowEx.SystemBackdrop = backdrop;
+            if (windowEx.SystemBackdrop != backdrop)
+            {
+                windowEx.SystemBackdrop = backdrop;
 
-            BackdropChanged?.Invoke(this, backdropType);
+                BackdropChanged?.Invoke(this, backdropType);
 
-            Debug.WriteLine($"Applied backdrop: {backdropType}");
+                Debug.WriteLine($"Applied backdrop: {backdropType}");
+            }
         }
         catch (Exception ex)
         {
@@ -284,11 +290,9 @@ public class NewThemeService : INewThemeService
             bool isDarkTheme = _underlyingThemeService.IsUnderlyingThemeDark();
 
             // Set button colors based on theme
-            // Background is always transparent for all buttons
+            // Normal and inactive backgrounds are transparent, but hover/pressed have subtle backgrounds
             titleBar.ButtonBackgroundColor = Color.FromArgb(0, 0, 0, 0); // Transparent
             titleBar.ButtonInactiveBackgroundColor = Color.FromArgb(0, 0, 0, 0); // Transparent
-            titleBar.ButtonHoverBackgroundColor = Color.FromArgb(0, 0, 0, 0); // Transparent
-            titleBar.ButtonPressedBackgroundColor = Color.FromArgb(0, 0, 0, 0); // Transparent
 
             if (isDarkTheme)
             {
@@ -296,7 +300,11 @@ public class NewThemeService : INewThemeService
                 titleBar.ButtonForegroundColor = Color.FromArgb(255, 255, 255, 255); // White
                 titleBar.ButtonInactiveForegroundColor = Color.FromArgb(128, 255, 255, 255); // Semi-transparent white
                 titleBar.ButtonHoverForegroundColor = Color.FromArgb(255, 255, 255, 255); // White
-                titleBar.ButtonPressedForegroundColor = Color.FromArgb(200, 255, 255, 255); // Slightly dimmed white
+                titleBar.ButtonPressedForegroundColor = Color.FromArgb(255, 255, 255, 255); // White
+
+                // Subtle hover and pressed backgrounds for dark theme
+                titleBar.ButtonHoverBackgroundColor = Color.FromArgb(20, 255, 255, 255); // Very subtle white overlay
+                titleBar.ButtonPressedBackgroundColor = Color.FromArgb(40, 255, 255, 255); // Slightly more visible white overlay
             }
             else
             {
@@ -304,7 +312,11 @@ public class NewThemeService : INewThemeService
                 titleBar.ButtonForegroundColor = Color.FromArgb(255, 0, 0, 0); // Black
                 titleBar.ButtonInactiveForegroundColor = Color.FromArgb(128, 0, 0, 0); // Semi-transparent black
                 titleBar.ButtonHoverForegroundColor = Color.FromArgb(255, 0, 0, 0); // Black
-                titleBar.ButtonPressedForegroundColor = Color.FromArgb(200, 0, 0, 0); // Slightly dimmed black
+                titleBar.ButtonPressedForegroundColor = Color.FromArgb(255, 0, 0, 0); // Black
+
+                // Subtle hover and pressed backgrounds for light theme
+                titleBar.ButtonHoverBackgroundColor = Color.FromArgb(20, 0, 0, 0); // Very subtle black overlay
+                titleBar.ButtonPressedBackgroundColor = Color.FromArgb(40, 0, 0, 0); // Slightly more visible black overlay
             }
 
             Debug.WriteLine($"Updated title bar button colors for {(isDarkTheme ? "dark" : "light")} theme");

Wino.Core.WinUI/Views/ManageAccountsPage.xaml.cs

@@ -32,6 +32,12 @@ public sealed partial class ManageAccountsPage : ManageAccountsPageAbstract,
     {
         base.OnNavigatedTo(e);
 
+        // Re-register message handlers after base.OnNavigatedTo unregisters all handlers
+        WeakReferenceMessenger.Default.Register<BreadcrumbNavigationRequested>(this);
+        WeakReferenceMessenger.Default.Register<BackBreadcrumNavigationRequested>(this);
+        WeakReferenceMessenger.Default.Register<MergedInboxRenamed>(this);
+        WeakReferenceMessenger.Default.Register<AccountUpdatedMessage>(this);
+
         var initialRequest = new BreadcrumbNavigationRequested(Translator.MenuManageAccounts, WinoPage.AccountManagementPage);
         PageHistory.Add(new BreadcrumbNavigationItemViewModel(initialRequest, true));
 
@@ -40,6 +46,16 @@ public sealed partial class ManageAccountsPage : ManageAccountsPageAbstract,
         AccountPagesFrame.Navigate(accountManagementPageType, null, new SuppressNavigationTransitionInfo());
     }
 
+    protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)
+    {
+        // Explicitly unregister our message handlers before base.OnNavigatingFrom calls UnregisterAll
+        WeakReferenceMessenger.Default.Unregister<BreadcrumbNavigationRequested>(this);
+        WeakReferenceMessenger.Default.Unregister<BackBreadcrumNavigationRequested>(this);
+        WeakReferenceMessenger.Default.Unregister<MergedInboxRenamed>(this);
+        WeakReferenceMessenger.Default.Unregister<AccountUpdatedMessage>(this);
+
+        base.OnNavigatingFrom(e);
+    }
 
     void IRecipient<BreadcrumbNavigationRequested>.Receive(BreadcrumbNavigationRequested message)
     {

Wino.Core.WinUI/Views/SettingsPage.xaml.cs

@@ -26,6 +26,9 @@ public sealed partial class SettingsPage : SettingsPageAbstract, IRecipient<Brea
     {
         base.OnNavigatedTo(e);
 
+        // Re-register the breadcrumb navigation handler after base.OnNavigatedTo unregisters all handlers
+        WeakReferenceMessenger.Default.Register<BreadcrumbNavigationRequested>(this);
+
         SettingsFrame.Navigate(typeof(SettingOptionsPage), null, new SuppressNavigationTransitionInfo());
 
         var initialRequest = new BreadcrumbNavigationRequested(Translator.MenuSettings, WinoPage.SettingOptionsPage);
@@ -58,6 +61,14 @@ public sealed partial class SettingsPage : SettingsPageAbstract, IRecipient<Brea
         settingsHeader.Title = Translator.MenuSettings;
     }
 
+    protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)
+    {
+        // Explicitly unregister our message handlers before base.OnNavigatingFrom calls UnregisterAll
+        WeakReferenceMessenger.Default.Unregister<BreadcrumbNavigationRequested>(this);
+
+        base.OnNavigatingFrom(e);
+    }
+
     void IRecipient<BreadcrumbNavigationRequested>.Receive(BreadcrumbNavigationRequested message)
     {
         var pageType = ViewModel.NavigationService.GetPageType(message.PageType);