luban_ui_internal/src/LubanHub.App/App.axaml

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

    <Application.Styles>
        <FluentTheme />
        
        <!-- 引入自定义样式 -->
        <StyleInclude Source="/Themes/Styles.axaml"/>
    </Application.Styles>
</Application>