add:定时恢复墨迹设置

Ink Canvas/MainWindow_cs/MW_FloatingBarIcons.cs

@@ -2423,41 +2423,49 @@ namespace Ink_Canvas
         private void QuickColorWhite_Click(object sender, RoutedEventArgs e)
         {
             SetQuickColor(Colors.White);
+            ScheduleBrushAutoRestore();
         }
 
         private void QuickColorOrange_Click(object sender, RoutedEventArgs e)
         {
             SetQuickColor(Color.FromRgb(251, 150, 80)); // 橙色
+            ScheduleBrushAutoRestore();
         }
 
         private void QuickColorYellow_Click(object sender, RoutedEventArgs e)
         {
             SetQuickColor(Colors.Yellow);
+            ScheduleBrushAutoRestore();
         }
 
         private void QuickColorBlack_Click(object sender, RoutedEventArgs e)
         {
             SetQuickColor(Colors.Black);
+            ScheduleBrushAutoRestore();
         }
 
         private void QuickColorBlue_Click(object sender, RoutedEventArgs e)
         {
             SetQuickColor(Color.FromRgb(37, 99, 235)); // 蓝色
+            ScheduleBrushAutoRestore();
         }
 
         private void QuickColorRed_Click(object sender, RoutedEventArgs e)
         {
             SetQuickColor(Colors.Red);
+            ScheduleBrushAutoRestore();
         }
 
         private void QuickColorGreen_Click(object sender, RoutedEventArgs e)
         {
             SetQuickColor(Color.FromRgb(22, 163, 74));
+            ScheduleBrushAutoRestore();
         }
 
         private void QuickColorPurple_Click(object sender, RoutedEventArgs e)
         {
             SetQuickColor(Color.FromRgb(147, 51, 234));
+            ScheduleBrushAutoRestore();
         }
 
         private void SetQuickColor(Color color)