prs/prs.desktop/Panels/Notifications/NotificationPanel.xaml

<UserControl x:Class="PRSDesktop.NotificationPanel"
             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:syncfusion="http://schemas.syncfusion.com/wpf"
             mc:Ignorable="d"
             d:DesignHeight="450" d:DesignWidth="800">
    <Grid x:Name="Layout">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="Auto" />
            <ColumnDefinition Width="*" />
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height=".4*" />
            <RowDefinition Height=".6*" />
        </Grid.RowDefinitions>

        <ListView Grid.Column="0" Grid.Row="0" Grid.RowSpan="2" x:Name="Folders" HorizontalAlignment="Stretch"
                  SelectionChanged="Folders_SelectionChanged" Margin="0,0,5,0" Background="White">
            <ListView.ItemTemplate>
                <DataTemplate>
                    <Grid HorizontalAlignment="Stretch" Margin="4,2,4,2">
                        <StackPanel Orientation="Horizontal" HorizontalAlignment="Stretch">
                            <Border Width="40" Height="40" CornerRadius="20" BorderBrush="Black" BorderThickness="1"
                                    VerticalAlignment="Center" HorizontalAlignment="Center">
                                <Border.Background>
                                    <ImageBrush ImageSource="{Binding Item2}" Stretch="UniformToFill" />
                                </Border.Background>
                            </Border>
                            <TextBlock Height="Auto" TextWrapping="Wrap" Width="60" Margin="4,0,0,0"
                                       TextAlignment="Left" Text="{Binding Item1}" VerticalAlignment="Center" />
                        </StackPanel>
                    </Grid>
                </DataTemplate>
            </ListView.ItemTemplate>
        </ListView>

        <syncfusion:SfRichTextBoxAdv Grid.Column="1" Grid.Row="1" Margin="0,5,0,0" x:Name="Editor"
                                     LayoutType="Continuous" EnableMiniToolBar="False"
                                     OverridesDocumentBackground="True" Background="WhiteSmoke" Foreground="Black"
                                     BorderBrush="Gray" BorderThickness="1" IsReadOnly="True" />

    </Grid>
</UserControl>