Handle mouse leave event for theme previewer

Author: t1m0thyj

src/Skia/ThemePreviewer.cs

@@ -85,7 +85,7 @@ public ThemePreviewer()
             fadeTimer.Tick += FadeTimer_Tick;
 
             MouseEnter += (s, e) => ViewModel.IsMouseOver = true;
-            MouseLeave += (s, e) => ViewModel.IsMouseOver = false;
+            MouseLeave += OnMouseLeave;
 
             ViewModel.PropertyChanged += (s, e) =>
             {
@@ -436,6 +436,26 @@ protected override void OnMouseMove(MouseEventArgs e)
             }
         }
 
+        private void OnMouseLeave(object sender, EventArgs e)
+        {
+            ViewModel.IsMouseOver = false;
+
+            // Reset all hover states
+            bool needsRedraw = isMouseOverPlay || isMouseOverLeft || isMouseOverRight || isMouseOverDownload;
+            
+            isMouseOverPlay = false;
+            isMouseOverLeft = false;
+            isMouseOverRight = false;
+            isMouseOverDownload = false;
+
+            Cursor = Cursors.Default;
+
+            if (needsRedraw)
+            {
+                Invalidate();
+            }
+        }
+
         private void StartAnimation()
         {
             fadeProgress = 0f;