Wino-Mail/Wino.Mail/App.xaml

<uwp:WinoApplication
    x:Class="Wino.App"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:controls="using:Wino.Controls"
    xmlns:selectors="using:Wino.Selectors"
    xmlns:styles="using:Wino.Styles"
    xmlns:uwp="using:Wino.Core.UWP"
    xmlns:wino="using:Wino">

    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <uwp:CoreGeneric />
                <ResourceDictionary Source="ms-appx:///CommunityToolkit.WinUI.Controls.Segmented/Segmented/Segmented.xaml" />
                <ResourceDictionary Source="Styles/ItemContainerStyles.xaml" />
                <ResourceDictionary Source="Styles/ImagePreviewControl.xaml" />
                <ResourceDictionary Source="Styles/WebViewEditorControl.xaml" />

                <styles:WinoExpanderStyle />

                <!--  Last item must always be the default theme.  -->
                <ResourceDictionary Source="ms-appx:///Wino.Core.UWP/AppThemes/Mica.xaml" />
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Application.Resources>
</uwp:WinoApplication>