Rocket.Chat/client/sidebar/RoomList/SidebarIcon.js

import { Sidebar } from '@rocket.chat/fuselage';
import React from 'react';

import { useRoomIcon } from '../../hooks/useRoomIcon';

const SidebarIcon = ({ room, highlighted }) => {
	const icon = useRoomIcon(room);

	return (
		<Sidebar.Item.Icon highlighted={highlighted} {...(icon.name && icon)}>
			{!icon.name && icon}
		</Sidebar.Item.Icon>
	);
};

export default SidebarIcon;