hugo-theme-hilfe/layouts/partials/site-header.html

<header class="gdoc-header">
    <div class="container flex align-center justify-between">
        {{ if .MenuEnabled }}
        <label for="menu-control" class="gdoc-nav__control">
            <svg class="icon gdoc_menu"><use xlink:href="#gdoc_menu"></use></svg>
            <svg class="icon gdoc_arrow_back"><use xlink:href="#gdoc_arrow_back"></use></svg>
        </label>
        {{ end }}
        <a class="gdoc-header__link" href="{{ .Root.Site.BaseURL }}">
            <span class="gdoc-brand flex align-center">
                <img class="gdoc-brand__img" src="{{ (default "brand.svg" .Root.Site.Params.GeekdocLogo) | relURL }}" alt="">
                {{ .Root.Site.Title }}
            </span>
        </a>
        <span id="gdoc-dark-mode">
            <svg class="icon gdoc_brightness_dark"><use xlink:href="#gdoc_brightness_dark"></use></svg>
            <svg class="icon gdoc_brightness_light"><use xlink:href="#gdoc_brightness_light"></use></svg>
            <svg class="icon gdoc_brightness_auto"><use xlink:href="#gdoc_brightness_auto"></use></svg>
        </span>
    </div>
</header>