wabbajack/Wabbajack.App/Views/MainWindow.axaml

<app:FluentWindow xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:vm="using:Wabbajack.App.ViewModels"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:app="clr-namespace:Wabbajack.App"
        xmlns:views="clr-namespace:Wabbajack.App.Views"
        
        xmlns:i="clr-namespace:Material.Icons.Avalonia;assembly=Material.Icons.Avalonia"
        xmlns:reactiveUi="http://reactiveui.net"
        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
        x:Class="Wabbajack.App.Views.MainWindow"
        Icon="{x:Null}"
        WindowStartupLocation="CenterScreen"
        Background="#121212"
        
        MaxWidth="1920"
        MaxHeight="1080"
        
        ExtendClientAreaToDecorationsHint="True"
        ExtendClientAreaChromeHints="NoChrome"
        ExtendClientAreaTitleBarHeightHint="-1"
        
        Title="Wabbajack 3.0 - WIP">
    
    <app:FluentWindow.Styles>
        <Style Selector="TitleBar:fullscreen">
            <Setter Property="Background" Value="#7f000000" />
        </Style>
    </app:FluentWindow.Styles>

    <Design.DataContext>
        <vm:MainWindowViewModel/>
    </Design.DataContext>

    <Grid RowDefinitions="40, *">
        <Grid ColumnDefinitions="40, *, 40, 40, 40, 40">
            <Button Grid.Column="0" x:Name="BackButton">
                <i:MaterialIcon Kind="ArrowBack"> </i:MaterialIcon>
            </Button>

            <TextBlock Grid.Column="1" HorizontalAlignment="Right" VerticalAlignment="Center" x:Name="ResourceStatus"></TextBlock>
            
            <Button Grid.Column="2" x:Name="LogButton">
                <i:MaterialIcon Kind="ViewList"></i:MaterialIcon>
            </Button>
            
            <Button Grid.Column="3" x:Name="SettingsButton">
                <i:MaterialIcon Kind="Gear"></i:MaterialIcon>
            </Button>
            <Button Grid.Column="4" x:Name="MinimizeButton">
               <i:MaterialIcon Kind="WindowMinimize" />
            </Button>
            
            <Button Grid.Column="5" x:Name="CloseButton">
                <i:MaterialIcon Kind="Close"/>
            </Button>
            
        </Grid>
        <ContentControl Grid.Row="1" x:Name="Contents"></ContentControl>
        
    </Grid>

</app:FluentWindow>