remove unused stuff

src/IconPacks.Avalonia.Core/Converter/MarkupConverter.cs

@@ -56,7 +56,7 @@ object IValueConverter.Convert(object value, Type targetType, object parameter,
             }
             catch
             {
-                return BindingNotification.UnsetValue;
+                return BindingOperations.DoNothing;
             }
         }
 
@@ -69,7 +69,7 @@ object IValueConverter.ConvertBack(object value, Type targetType, object paramet
             }
             catch
             {
-                return BindingNotification.UnsetValue;
+                return BindingOperations.DoNothing;
             }
         }
     }

src/IconPacks.Avalonia.Core/Converter/PackIconKindToImageConverterBase.cs

@@ -45,8 +45,8 @@ protected Transform GetTransformGroup(object iconKind)
             var transformGroup = new TransformGroup();
             transformGroup.Children.Add(this.GetScaleTransform(iconKind)); // scale
             transformGroup.Children.Add(new ScaleTransform(
-                this.Flip == PackIconFlipOrientation.Horizontal || this.Flip == PackIconFlipOrientation.Both ? -1 : 1,
-                this.Flip == PackIconFlipOrientation.Vertical || this.Flip == PackIconFlipOrientation.Both ? -1 : 1
+                this.Flip is PackIconFlipOrientation.Horizontal or PackIconFlipOrientation.Both ? -1 : 1,
+                this.Flip is PackIconFlipOrientation.Vertical or PackIconFlipOrientation.Both ? -1 : 1
             )); // flip
             transformGroup.Children.Add(new RotateTransform(this.RotationAngle)); // rotate
 
@@ -60,7 +60,7 @@ protected virtual DrawingGroup GetDrawingGroup(object iconKind, IBrush foregroun
         {
             var geometryDrawing = new GeometryDrawing
             {
-                Geometry = Geometry.Parse(path),
+                Geometry = StreamGeometry.Parse(path),
                 Brush = foregroundBrush
             };
 
@@ -92,24 +92,15 @@ protected IImage CreateImageSource(object iconKind, IBrush foregroundBrush)
         /// <inheritdoc />
         protected override object Convert(object value, Type targetType, object parameter, CultureInfo culture)
         {
-            if (value is not Enum)
-            {
-                return BindingNotification.UnsetValue;
-            }
-
-            var imageSource = CreateImageSource(value, parameter as IBrush ?? this.Brush ?? Brushes.Black);
-            if (imageSource is null)
-            {
-                return BindingNotification.UnsetValue;
-            }
-
-            return imageSource;
+            return value is not Enum
+                ? null
+                : CreateImageSource(value, parameter as IBrush ?? this.Brush ?? Brushes.Black);
         }
 
         /// <inheritdoc />
         protected override object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
         {
-            return BindingNotification.UnsetValue;
+            throw new NotSupportedException("Two way bindings are not supported with an image");
         }
     }
 }

src/IconPacks.Avalonia.Core/PackIconImageExtension.cs

@@ -58,7 +58,7 @@ protected virtual DrawingGroup GetDrawingGroup(object iconKind, IBrush foregroun
         {
             var geometryDrawing = new GeometryDrawing
             {
-                Geometry = Geometry.Parse(path),
+                Geometry = StreamGeometry.Parse(path),
                 Brush = foregroundBrush
             };
 

src/IconPacks.Avalonia/Converter/PackIconKindToImageConverter.cs

@@ -153,7 +153,7 @@ protected override DrawingGroup GetDrawingGroup(object iconKind, IBrush foregrou
         {
             var geometryDrawing = new GeometryDrawing
             {
-                Geometry = Geometry.Parse(path)
+                Geometry = StreamGeometry.Parse(path)
             };
 
             // if (iconKind is PackIconFeatherIconsKind)

src/IconPacks.Avalonia/PackIconImageExtension.cs

@@ -171,7 +171,7 @@ protected override DrawingGroup GetDrawingGroup(object iconKind, IBrush foregrou
         {
             var geometryDrawing = new GeometryDrawing
             {
-                Geometry = Geometry.Parse(path)
+                Geometry = StreamGeometry.Parse(path)
             };
 
             // if (iconKind is PackIconFeatherIconsKind)