searx/searx/templates/oscar/languages.html

{% if preferences -%}
<select class="custom-select form-control" name='language'>
{%- else -%}
<select class="time_range custom-select form-control" id='language' name='language'>
{%- endif -%}
	<option value="all" {% if current_language == 'all' %}selected="selected"{% endif %}>{{ _('Default language') }}</option>
	{%- for lang_id,lang_name,country_name,english_name in language_codes | sort(attribute=1) -%}
		<option value="{{ lang_id }}" {% if lang_id == current_language %}selected="selected"{% endif %}>
			{{- lang_name }} {% if country_name %}({{ country_name }}) {% endif %}- {{ lang_id -}}
		</option>
	{%- endfor -%}
</select>