inabox/InABox.Avalonia/Components/MenuPanel/AvaloniaMenuPanel.axaml

<UserControl 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"
             xmlns:components="clr-namespace:InABox.Avalonia.Components"
             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
             x:Class="InABox.Avalonia.Components.AvaloniaMenuPanel"
             x:DataType="components:AvaloniaMenuPanel">

    <UserControl.Resources>
        <DataTemplate x:Key="MenuPanelItemItemplate" x:DataType="components:AvaloniaMenuItem">
            <Button
                Classes="Transparent"
                Padding="0"
                HorizontalAlignment="Center"
                VerticalAlignment="Center"
                Command="{Binding TapCommand}"
                ContextMenu="{Binding ContextMenu}"
                IsVisible="{Binding IsVisible}">
                <Image
                    Source="{Binding Image}" />
            </Button>
        </DataTemplate>
    </UserControl.Resources>

    <ItemsControl
        DataContext="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType = components:AvaloniaMenuPanel}}"
        ItemsSource="{Binding Items.Items}"
        ItemTemplate="{StaticResource MenuPanelItemItemplate}"
        ItemsPanel="{StaticResource HorizontalItemsPanelTemplate}" />
</UserControl>