aswdvg/App.axaml

<Application xmlns="https://github.com/avaloniaui"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             x:Class="TourAgent.App"
             RequestedThemeVariant="Default">
             <!-- "Default" ThemeVariant follows system theme variant. "Dark" or "Light" are other available options. -->
  
    <Application.Styles>
        <FluentTheme />
    </Application.Styles>
	<Application.Resources>
		<FontFamily x:Key="Comic">avares://TourAgent/Assets/Fonts/Comic Sans MS.ttf#Comic Sans MS</FontFamily>
	</Application.Resources>
</Application>