toast_mcl/App.axaml

<Application xmlns="https://github.com/avaloniaui"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             x:Class="toast_mcl.App"
			 xmlns:sty="using:FluentAvalonia.Styling"
             RequestedThemeVariant="Dark"
			 >
             <!-- "Default" ThemeVariant follows system theme variant. "Dark" or "Light" are other available options. -->

    <Application.Styles>
        <!--<FluentTheme />-->
		<sty:FluentAvaloniaTheme />
    </Application.Styles>
	<Application.Resources>
		<FontFamily x:Key="LXGW WenKai">avares://toast_mcl/Assets/Fonts/LXGWWenKai.ttf#LXGW WenKai</FontFamily>
	</Application.Resources>
</Application>