I don't know some changes....

Wino.Mail/Controls/WinoFontIconSource.cs

@@ -1,41 +0,0 @@
-
-
-#if NET8_0
-using Microsoft.UI.Xaml;
-using Microsoft.UI.Xaml.Media;
-#else
-using Windows.UI.Xaml;
-using Windows.UI.Xaml.Media;
-#endif
-namespace Wino.Controls
-{
-    public class WinoFontIconSource : Microsoft.UI.Xaml.Controls.FontIconSource
-    {
-        public WinoIconGlyph Icon
-        {
-            get { return (WinoIconGlyph)GetValue(IconProperty); }
-            set { SetValue(IconProperty, value); }
-        }
-
-        public static readonly DependencyProperty IconProperty = DependencyProperty.Register(nameof(Icon), typeof(WinoIconGlyph), typeof(WinoFontIconSource), new PropertyMetadata(WinoIconGlyph.Flag, OnIconChanged));
-
-        public WinoFontIconSource()
-        {
-            FontFamily = new FontFamily("ms-appx:///Assets/WinoIcons.ttf#WinoIcons");
-            FontSize = 32;
-        }
-
-        private static void OnIconChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args)
-        {
-            if (obj is WinoFontIconSource fontIcon)
-            {
-                fontIcon.UpdateGlyph();
-            }
-        }
-
-        private void UpdateGlyph()
-        {
-            Glyph = ControlConstants.WinoIconFontDictionary[Icon];
-        }
-    }
-}