Aaru/Aaru.Gui/App.xaml

<Application xmlns="https://github.com/avaloniaui" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:gui="clr-namespace:Aaru.Gui" x:Class="Aaru.Gui.App">
    <Application.DataTemplates>
        <gui:ViewLocator />
    </Application.DataTemplates>
    <Application.Styles>
        <StyleInclude Source="avares://Avalonia.Themes.Default/DefaultTheme.xaml" />
        <StyleInclude Source="avares://Avalonia.Themes.Default/Accents/BaseLight.xaml" />
        <StyleInclude Source="avares://Avalonia.Controls.DataGrid/Themes/Default.xaml" />
        <StyleInclude Source="resm:OxyPlot.Avalonia.Themes.Default.xaml?assembly=OxyPlot.Avalonia"/>
    </Application.Styles>
    <NativeMenu.Menu>
        <NativeMenu>
            <NativeMenuItem Header="_About" Clicked="OnAboutClicked" />
            <NativeMenuItem Header="_Preferences" Clicked="OnPreferencesClicked" />
            <NativeMenuItem Header="_Quit" Clicked="OnQuitClicked" />
        </NativeMenu>
    </NativeMenu.Menu>
</Application>