kmpdfkit_demo/compdfkit_demo_windows/compdfkit/compdfkit-tools/Annotation/PDFAnnotationUI/PDFMarkup/CPDFHighlightUI.xaml

<UserControl x:Class="compdfkit_tools.PDFControlUI.CPDFHighlightUI"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:cpdfcommon="clr-namespace:compdfkit_tools.Common"
             mc:Ignorable="d" 
             d:DesignHeight="800" d:DesignWidth="300">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="150"></RowDefinition>
            <RowDefinition Height="80"></RowDefinition>
            <RowDefinition Height="80"></RowDefinition>
            <RowDefinition Height="200"></RowDefinition>
            <RowDefinition></RowDefinition>
        </Grid.RowDefinitions>
        <StackPanel Orientation="Vertical">
            <TextBlock Text="Highliht" HorizontalAlignment="Center"></TextBlock>
            <Border Height="100" Background="#DEDEDE" Margin="10" CornerRadius="5"></Border>
        </StackPanel>
        <StackPanel Grid.Row="1" Margin="5">
            <TextBlock Text="Color"></TextBlock>
            <cpdfcommon:ColorPickerControl></cpdfcommon:ColorPickerControl>
        </StackPanel>
        <StackPanel Grid.Row="2" Margin="5">
            <TextBlock Text="Opacity"></TextBlock>
            <cpdfcommon:OpactiyControl Height="40"></cpdfcommon:OpactiyControl>
        </StackPanel>
        <StackPanel Grid.Row="3" Margin="5">
            <TextBlock Text="Note"></TextBlock>
            <TextBox Height="150"></TextBox>
        </StackPanel>
    </Grid>
</UserControl>