FiveMHelper/CarConverter/MainWindow.xaml

<Window x:Class="CarConverter.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        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"
        Closing="OnClose"
        Title="CarConverter" Height="500" Width="800">
    
    <Window.Resources>
        <Brush x:Key="Background">#37323E</Brush>
        <Brush x:Key="Text">#FFFFFF</Brush>
        <Brush x:Key="Light">#6D6A75</Brush>
        <Brush x:Key="Gray">#524E5A</Brush>
        <Brush x:Key="Dark">#514C50</Brush>
        
        <Style TargetType="{x:Type Label}">
            <Setter Property="Foreground" Value="{StaticResource Text}" />
        </Style>
        
        <Style TargetType="{x:Type Label}" x:Key="HeaderText" BasedOn="{StaticResource {x:Type Label}}">
            <Setter Property="FontSize" Value="15" />
            <Setter Property="VerticalAlignment" Value="Center" />
            <Setter Property="HorizontalAlignment" Value="Center" />
            <Setter Property="FontWeight" Value="Bold" />
        </Style>
        
        <Style TargetType="{x:Type CheckBox}">
            <Setter Property="Foreground" Value="{StaticResource Text}" />
            <Setter Property="FontSize" Value="11" />
            <Setter Property="VerticalAlignment" Value="Center" />
            <Setter Property="HorizontalAlignment" Value="Center" />
            <Setter Property="FontWeight" Value="Bold" />
        </Style>
        
        <Style TargetType="{x:Type Button}">
            <Setter Property="Background" Value="{StaticResource Light}" />
            <Setter Property="BorderBrush" Value="{StaticResource Light}"></Setter>
            <Setter Property="Foreground" Value="{StaticResource Text}" />
            <Setter Property="FontSize" Value="15" />
            
            <Setter Property="Margin" Value="10 5"></Setter>
            
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type Button}">
                        <Border x:Name="Border" Background="{TemplateBinding Background}">
                            <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center" />
                        </Border>
                        <ControlTemplate.Triggers>
                            <Trigger Property="IsMouseOver" Value="True">
                                <Setter Property="Background" Value="{StaticResource Gray}" TargetName="Border" />
                            </Trigger>
                            <Trigger Property="IsPressed" Value="True">
                                <Setter Property="Background" Value="{StaticResource Dark}" TargetName="Border"/>
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
        
        <Style TargetType="{x:Type Button}" x:Key="ActionButtons" BasedOn="{StaticResource {x:Type Button}}">
            <Setter Property="Margin" Value="50 5 50 5"></Setter>
        </Style>
        
        <Style TargetType="{x:Type TextBox}">
            <Setter Property="Margin" Value="5"></Setter>
            <Setter Property="Background" Value="{StaticResource Light}"></Setter>
            <Setter Property="BorderBrush" Value="{StaticResource Gray}"></Setter>
            <Setter Property="Foreground" Value="{StaticResource Text}"></Setter>
        </Style>
        
        <Style TargetType="{x:Type Label}" x:Key="OutPathStyle" BasedOn="{StaticResource {x:Type Label}}">
            <Setter Property="VerticalAlignment" Value="Center"></Setter>
        </Style>
        
        <Style TargetType="{x:Type TreeView}">
            <Setter Property="Background" Value="{StaticResource Background}"></Setter>
            <Setter Property="BorderBrush" Value="{StaticResource Gray}"></Setter>
            <Setter Property="Margin" Value="5"></Setter>
        </Style>
        
        <Style TargetType="{x:Type ListView}">
            <Setter Property="Background" Value="{StaticResource Background}"></Setter>
            <Setter Property="BorderBrush" Value="{StaticResource Gray}"></Setter>
            <Setter Property="Margin" Value="5"></Setter>
        </Style>
        
        <Style TargetType="{x:Type TreeViewItem}">
            <Setter Property="Foreground" Value="{StaticResource Text}"></Setter>
        </Style>
        
        <Style TargetType="{x:Type ListViewItem}">
            <Setter Property="Foreground" Value="{StaticResource Text}"></Setter>
        </Style>
    </Window.Resources>
    
    <Grid Background="{StaticResource Background}">
        <Grid.ColumnDefinitions>
            <ColumnDefinition />
            <ColumnDefinition />
        </Grid.ColumnDefinitions>
        
        <Grid Grid.Column="0">
            <Grid.RowDefinitions>
                <RowDefinition Height="30" />
                <RowDefinition />
                <RowDefinition Height="25"/>
            </Grid.RowDefinitions>
            
            <Label Grid.Row="0" Content="RPF Explorer" Style="{StaticResource HeaderText}" />
            <TreeView Grid.Row="1" AllowDrop="True" Drop="OnDrop" x:Name="FolderView"/>
            <CheckBox Grid.Row="2" Content="Compress Files" x:Name="Compress" IsChecked="True" />
        </Grid>
        
        <Grid Grid.Column="1">
            <Grid.RowDefinitions>
                <RowDefinition Height="30" />
                <RowDefinition />
                <RowDefinition Height="30" />
                <RowDefinition />
                <RowDefinition Height="50" />
                <RowDefinition Height="30" />
                <RowDefinition Height="40" />
            </Grid.RowDefinitions>
            
            <Label Grid.Row="0" Content="Stream Files" Style="{StaticResource HeaderText}" />
            <ListView Grid.Row="1" Name="StreamFiles" />
            
            <Label Grid.Row="2" Content="Meta Files" Style="{StaticResource HeaderText}" />
            <ListView Grid.Row="3" Name="MetaFiles" />
            
            <Grid Grid.Row="4">
                <Grid.ColumnDefinitions>
                    <ColumnDefinition />
                    <ColumnDefinition />
                </Grid.ColumnDefinitions>
                
                <Button Grid.Column="0" Content="Build" Click="Build" Style="{StaticResource ActionButtons}"/>
                <Button Grid.Column="1" Content="Clear" Click="Clear" Style="{StaticResource ActionButtons}"/>
            </Grid>
            
            <TextBox Grid.Row="5" Text="Car name" Name="CarName" />
            
            <Grid Grid.Row="6">
                <Grid.ColumnDefinitions>
                    <ColumnDefinition />
                    <ColumnDefinition Width="150" />
                </Grid.ColumnDefinitions>
                
                <Label Grid.Column="0" Content="Out dir" Name="OutPath" Style="{StaticResource OutPathStyle}"/>
                <Button Grid.Column="1" Content="Set out dir" Click="ChooseOutDir" />
            </Grid>
        </Grid>
    </Grid>
</Window>