<dryioc:PrismApplication
    x:Class="ExampleCore.App"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:dryioc="http://prismlibrary.com/"
    xmlns:ui="http://schemas.modernwpf.com/2019">
    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ui:ThemeResources />
                <ui:XamlControlsResources />
                <!--  Other merged dictionaries here  -->
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Application.Resources>
</dryioc:PrismApplication>