Resources/views/language-button-1.html.twig
<div id="weglot-language-picker">
<ul class="weglot-navigation" data-wg-notranslate>
<li class="weglot-{{ original_language }}"><a href="{{ path(app.request.attributes.get('_route'), app.request.attributes.get('_route_params') | merge({_locale: original_language }) ) }}" class="weglot-{{ original_language }}">{{ original_language | language(false) }}</a></li>
{% for l in destination_languages %}
<li class="weglot-{{ l }}"><a href="{{ path(app.request.attributes.get('_route'), app.request.attributes.get('_route_params') | merge({_locale: l }) ) }}" class="weglot-{{ l }}">{{ l | language(false) }}</a></li>
{% endfor %}
</ul>
</div>