I don't know some changes....

Wino.Mail/Dialogs/CustomThemeBuilderDialog.xaml.cs

@@ -1,72 +0,0 @@
-using System;
-using CommunityToolkit.WinUI.Helpers;
-using Microsoft.Extensions.DependencyInjection;
-using Wino.Core.Domain.Interfaces;
-
-#if NET8_0
-using Microsoft.UI.Xaml;
-using Microsoft.UI.Xaml.Controls;
-using Microsoft.UI.Xaml.Media;
-#else
-using Windows.UI.Xaml.Controls;
-using Windows.UI.Xaml;
-using Windows.UI.Xaml.Media;
-#endif
-
-namespace Wino.Dialogs
-{
-    public sealed partial class CustomThemeBuilderDialog : ContentDialog
-    {
-        public byte[] WallpaperData { get; private set; }
-        public string AccentColor { get; private set; }
-
-        private IThemeService _themeService;
-
-        public CustomThemeBuilderDialog()
-        {
-            InitializeComponent();
-
-            _themeService = App.Current.Services.GetService<IThemeService>();
-        }
-
-        private async void ApplyClicked(ContentDialog sender, ContentDialogButtonClickEventArgs args)
-        {
-            if (Array.Empty<byte>() == WallpaperData)
-                return;
-
-            var deferal = args.GetDeferral();
-
-            try
-            {
-                await _themeService.CreateNewCustomThemeAsync(ThemeNameBox.Text, AccentColor, WallpaperData);
-            }
-            catch (Exception exception)
-            {
-                ErrorTextBlock.Text = exception.Message;
-            }
-            finally
-            {
-                deferal.Complete();
-            }
-        }
-
-        private async void BrowseWallpaperClicked(object sender, RoutedEventArgs e)
-        {
-            var dialogService = App.Current.Services.GetService<IDialogService>();
-
-            var pickedFileData = await dialogService.PickWindowsFileContentAsync(".jpg", ".png");
-
-            if (pickedFileData == Array.Empty<byte>()) return;
-
-            IsPrimaryButtonEnabled = true;
-
-            WallpaperData = pickedFileData;
-        }
-
-        private void PickerColorChanged(Microsoft.UI.Xaml.Controls.ColorPicker sender, Microsoft.UI.Xaml.Controls.ColorChangedEventArgs args)
-        {
-            PreviewAccentColorGrid.Background = new SolidColorBrush(args.NewColor);
-            AccentColor = args.NewColor.ToHex();
-        }
-    }
-}