B20_UV_LogPC/B20UVLog/Controls/IOCell.xaml

<UserControl x:Class="B20UVLog.Controls.IOCell"
             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:local="clr-namespace:B20UVLog.Controls"
             mc:Ignorable="d">
    <Grid>
        <StackPanel Orientation="Horizontal">
            <StackPanel.Resources>
                <Style TargetType="Rectangle">
                    <Setter Property="Margin" Value="2 2 0 0"/>
                    <Setter Property="Height" Value="10"/>
                    <Setter Property="Width" Value="5"/>
                </Style>
            </StackPanel.Resources>
            <Rectangle x:Name="B0"/>
            <Rectangle x:Name="B1"/>
            <Rectangle x:Name="B2"/>
            <Rectangle x:Name="B3"/>
            <Rectangle x:Name="B4"/>
            <Rectangle x:Name="B5"/>
            <Rectangle x:Name="B6"/>
            <Rectangle x:Name="B7"/>
            <Rectangle x:Name="B8"/>
            <Rectangle x:Name="B9"/>
            <Rectangle x:Name="BA"/>
            <Rectangle x:Name="BB"/>
            <Rectangle x:Name="BC"/>
            <Rectangle x:Name="BD"/>
            <Rectangle x:Name="BE"/>
            <Rectangle x:Name="BF"/>
        </StackPanel>
    </Grid>
</UserControl>