How to change the icon in header contact?

I would like to change the icon on the header contact in my sydney pro theme. Could you please advise which file to modify to change that? Also, potentially I would like to add another item in the header contact. How do I do that? Any help is much appreciated! Thanks.

Hi!

Please go to Appearance > Editor and open Functions.php file and find
/advanced title + breadcrumb function/
and add following code right above it

add_action( 'wp_enqueue_scripts', 'enqueue_awesome' );
function enqueue_awesome() {
	wp_enqueue_style( 'prefix-font-awesome', '//netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.min.css', array(), '4.0.3' );
}

Hello @tottibeanjin,

Please check this topic:

Please feel free to ask any other questions that you might have.

Kind Regards, Roman.