shortcode_button

// Add Shortcode
function custom_shortcode_button( $atts ) {

	// Attributes
	extract( shortcode_atts(
		array(
			'color' => 'silver',
			'link' => '',
			'icon' => 'fa fa-arrow-right',
		), $atts )
	);
}
add_shortcode( 'button', 'custom_shortcode_button' );