Add a Dropdown Indicator to a Genesis Navigation Menu Automatically with Font Awesome

function.php

//* Make Font Awesome available
add_action( 'wp_enqueue_scripts', 'enqueue_font_awesome' );
function enqueue_font_awesome() {
 
	wp_enqueue_style( 'font-awesome', '//netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.css' );
 
}

style.css

/* Sub menu indicators
--------------------------------------------- */
 
.genesis-nav-menu > .menu-item.menu-item-has-children > a:after {
	content: "\f107";
	font-family: 'FontAwesome';
	font-size: 1.2rem;
	padding-left: 0.5rem;
	speak: none;
}
 
ul.sub-menu li.menu-item-has-children > a:after {
	content: "\f105";
	font-family: 'FontAwesome';
	font-size: 1.2rem;
	padding-left: 1rem;
	speak: none;
}