<ResourceDictionary xmlns="https://github.com/avaloniaui" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <Thickness x:Key="AdornerLayerBorderThickness">2</Thickness>
    <StaticResource x:Key="AdornerLayerCornerRadius" ResourceKey="SemiBorderRadiusSmall" />
</ResourceDictionary>