converse.js/src/templates/group_header.html

Browser based XMPP chat client

<a href="#" class="list-toggle group-toggle controlbox-padded" title="{{{o.desc_group_toggle}}}">
    <span class="fa {[ if (o.toggle_state === o._converse.OPENED) { ]} fa-caret-down {[ } else { ]} fa-caret-right {[ } ]}">
    </span> {{{o.label_group}}}</a>
<ul class="items-list roster-group-contacts {[ if (o.toggle_state === o._converse.CLOSED) { ]} collapsed {[ } ]}"></ul>