bfr/BFR/MainWindow.xaml

<Window xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        mc:Ignorable="d" MinWidth="720" MinHeight="480"
        x:Class="BFR.MainWindow"
        Title="BFR">
  <Grid RowDefinitions="auto,auto,*" ColumnDefinitions="*,*,*">
    <!-- Directory Selection and TODO:Filter -->
    <Grid Grid.ColumnSpan="3" ColumnDefinitions="*,auto">
      <TextBox Grid.Column="0" IsEnabled="False" Text="C:/Example.File.png"/>
      <Button  Grid.Column="1" Content=" ... "/>
    </Grid>
    <!-- ListBox Headers -->
    <TextBlock Grid.Row="1" Grid.Column="0" Text="Before"/>
    <TextBlock Grid.Row="1" Grid.Column="1" Text="Operations"/>
    <TextBlock Grid.Row="1" Grid.Column="2" Text="After"/>
    
    <!-- Current and Preview ListBoxes -->
    <ListBox Grid.Row="2" Grid.Column="0"/>
    <ListBox Grid.Row="2" Grid.Column="2"/>

    <!-- Middle Section (Operations, Controls) -->
    <Grid Grid.Row="2" Grid.Column="1" RowDefinitions="*,auto,auto">
      <!-- Operations ListBox -->
      <ListBox/>
      
      <!-- Operations Controls -->
      <Grid Grid.Row="1" ColumnDefinitions="auto,*,auto,auto,auto">
        <TextBlock Grid.Column="0" Text="New:"/>
        <ComboBox Grid.Column="1"/>
        <Button Grid.Column="2" Content=" + "/>
        <Button Grid.Column="3" Content=" - "/>
        <ButtonSpinner Grid.Column="4"/>
      </Grid>
      
      <!-- Commit and Undo Buttons -->
      <Grid Grid.Row="2" ColumnDefinitions="*,*">
        <Button Grid.Column="0" Content="Undo"/>
        <Button Grid.Column="1" Content="Rename All"/>
      </Grid>
    </Grid>
  </Grid>
</Window>