neiyou_user_web/config/theme.php

<?php

// 如何使用请参考 https://proxypanel.gitbook.io/wiki/page-modify#theme
return [
    'sidebar' => 'site-menubar-light',
    'navbar'  => [
        'inverse' => 'navbar-inverse',
        'skin'    => 'bg-indigo-600',
    ],
    'skin'    => '',
];