<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
    <ResourceDictionary.MergedDictionaries>
        <!-- This is only used internally - none of you business! -->
        <ResourceDictionary Source="Blend.xaml" />
        <ResourceDictionary Source="Dark.xaml" />
        <ResourceDictionary Source="DarkBlue.xaml" />
        <ResourceDictionary Source="Light.xaml" />
        <ResourceDictionary Source="LightBlue.xaml" />
    </ResourceDictionary.MergedDictionaries>
</ResourceDictionary>