Rocket.Chat/packages/rocketchat-livechat/app/client/views/room.html

<template name="room">
	<div class="livechat-room">
		<div class="title" style="background-color:{{color}}">
			<div class="toolbar">
				{{#unless popoutActive}}
					<i class="popout icon-link-ext" title="Open in a new window"></i>
				{{/unless}}
			</div>
			<h1>{{title}}</h1>
		</div>
		<div class="messages">
			<div class="wrapper">
				<ul>
					{{#each messages}}
						{{#nrr nrrargs 'message' .}}{{/nrr}}
					{{/each}}
				</ul>
			</div>
			<div class="new-message not">
				<span>New messages</span>
			</div>

			<div class="error">
				<span></span>
			</div>
		</div>
		<div class="footer">
			<div class="input-wrapper">
				<textarea class="input-message" placeholder="Type your message"></textarea>
			</div>
		</div>
	</div>
</template>