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Fill the baseline decoration with a linear gradient brush in C#

<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"   xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"   x:Class="TextDecorationExample.Window1"   Title="TextDecoration Example"   Width="720"   Height="400"   Loaded="WindowLoaded">   <StackPanel>       <TextBlock Name="baselineTextBlock" FontSize="24" Width="180" VerticalAlignment="Center">The lazy dog</TextBlock>         </StackPanel> </Window> //File:Window.xaml.cs using System; using System.Windows; using System.Windows.Media; namespace TextDecorationExample {     public partial class Window1 : Window     {          private void WindowLoaded(object sender, EventArgs e)          {              // Fill the baseline decoration with a linear gradient brush.              TextDecorationCollection myCollection = new TextDecorationCollection();              TextDecoration myBaseline = new TextDecoration();              myBaseline.Location = TextDecorationLocation.Baseline;              // Set the linear gradient brush.              Pen myPen = new Pen();              myPen.Brush = new LinearGradientBrush(Colors.Orange, Colors.Red, 0);              myPen.Thickness = 3;              myBaseline.Pen = myPen;              myBaseline.PenThicknessUnit = TextDecorationUnit.FontRecommended;              // Set the baseline decoration to the text block.              myCollection.Add(myBaseline);              baselineTextBlock.TextDecorations = myCollection;          }     } }