StyletTestingGround/DynamicMenu/App.xaml

<Application x:Class="DynamicMenu.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:s="https://github.com/canton7/Stylet"
             xmlns:local="clr-namespace:DynamicMenu">
    <Application.Resources>
        <s:ApplicationLoader>
            <s:ApplicationLoader.Bootstrapper>
                <local:Bootstrapper/>
            </s:ApplicationLoader.Bootstrapper>
        </s:ApplicationLoader>
    </Application.Resources>
</Application>