sakino/themes/nipponalba/layouts/partials/navbar.html

<header id="page-top">
    <nav>
        {{ $currentPage := . }}
        {{ range .Site.Menus.main }}
        <li id="{{ .Name }}"><a {{if or ($currentPage.IsMenuCurrent "main" .) ($currentPage.HasMenuCurrent "main" .) }}class="current"{{end}} href="{{ .URL }}" title="{{ .Name }}">{{ .Name }}</a></li>
        {{ end }}
        {{ if .IsTranslated }}
        {{ range .Translations }}
        <li><a rel="alternate" href="{{ .RelPermalink }}" hreflang="{{ .Lang }}" lang="{{ .Lang }}">{{ .Language.LanguageName }}<i class="fa fa-language fa-2x language" aria-hidden="true" title="Language"></i></a></li>
        {{ end }}
        {{ else }}
        {{ range .Site.Languages }}
        {{ if ne $.Site.Language.Lang .Lang }}
        <li><a rel="alternate" href="{{ .Lang | relURL }}" hreflang="{{ .Lang }}" lang="{{ .Lang }}">{{ .LanguageName }} <i class="fa fa-language fa-2x language" aria-hidden="true" title="言語"></i></a></li>
        {{ end }}
        {{ end }}
        {{ end }}
        <li><label for="theme-switch"><i class="fa fa-adjust fa-2x light" aria-hidden="true" title="light/dark mode switch"></i></label></li>
        </nav>
</header>