friendica-github/view/theme/diabook/group_side.tpl

<div id="profile_side" >
	<div class="">
		<h3 style="margin-left: 2px;">$title<a href="group/new" title="$createtext" class="icon text_add"></a></h3>
	</div>

	<div id="sidebar-group-list">
		<ul class="menu-profile-side">
			{{ for $groups as $group }}
			<li class="menu-profile-list">
				<span class="menu-profile-icon {{ if $group.selected }}group_selected{{else}}group_unselected{{ endif }}"></span>
				<a href="$group.href" class="menu-profile-list-item">
					$group.text
				</a>
				{{ if $group.edit }}
					<a href="$group.edit.href" class="action"><span class="icon text_edit" ></span></a>
				{{ endif }}
				{{ if $group.cid }}
					<input type="checkbox" 
						class="{{ if $group.selected }}ticked{{ else }}unticked {{ endif }} action" 
						onclick="contactgroupChangeMember('$group.id','$group.cid');return true;"
						{{ if $group.ismember }}checked="checked"{{ endif }}
					/>
				{{ endif }}
			</li>
			{{ endfor }}
		</ul>
	</div>
</div>