friendica/view/theme/quattro/templates/group_side.tpl

<div id="group-sidebar" class="widget">
	<div class="title tool">
		<h3 class="label">{{$title}}</h3>
		<a href="group/new" title="{{$createtext}}" class="action"><span class="icon text s16 add"> {{$add}}</span></a>
	</div>

	<div id="sidebar-group-list">
		<ul>
			{{foreach $groups as $group}}
			<li class="tool  {{if $group.selected}}selected{{/if}} group-{{$group.id}}">
				<a href="{{$group.href}}" class="label">
					{{$group.text}}
				</a>
				{{if $group.edit}}
					<a href="{{$group.edit.href}}" class="action"><span class="icon text s10 edit">{{$group.edit.title}}</span></a>
				{{/if}}
				{{if $group.cid}}
					<input type="checkbox"
						class="{{if $group.selected}}ticked{{else}}unticked {{/if}} action"
						onclick="return contactgroupChangeMember(this, '{{$group.id}}','{{$group.cid}}');"
						{{if $group.ismember}}checked="checked"{{/if}}
					/>
				{{/if}}
				<span class="notify"></span>
			</li>
			{{/foreach}}
		</ul>
	</div>
</div>