overleaf/services/web/app/views/project/editor/header.jade

header.toolbar.toolbar-header(ng-cloak, ng-hide="state.loading")
	a.btn.btn-full-height(
		href,
		ng-click="ui.leftMenuShown = true"
		tooltip="Menu",
		tooltip-placement="bottom"
	)
		i.fa.fa-fw.fa-bars

	span.name {{ project.name }}

	a(href='#', data-toggle="tooltip", title="Rename")
		i.fa.fa-pencil

	.toolbar-right
		a.btn.btn-full-height(
			href,
			tooltip="Share",
			tooltip-placement="bottom",
			ng-click="openShareProjectModal()",
			ng-controller="ShareController"
		)
			i.fa.fa-fw.fa-group
		a.btn.btn-full-height(
			href,
			ng-click="toggleTrackChanges()",
			ng-class="{ active: (ui.view == 'track-changes') }"
			tooltip="Recent Changes",
			tooltip-placement="bottom"
		)
			i.fa.fa-fw.fa-history
		a.btn.btn-full-height(
			href,
			tooltip="Chat",
			tooltip-placement="bottom",
			ng-class="{ active: ui.chatOpen }",
			ng-click="toggleChat()",
			ng-controller="ChatButtonController"
		)
			i.fa.fa-fw.fa-comment