Add Featured Image at top of Single Post/Page in Genesis

add-featured-image-no-customizer.php

<?php //<= dont add me in
// ref:  https://wpbeaches.com/add-featured-image-top-page-genesis/
// Add featured image on single post
add_action( 'genesis_entry_header', 'themeprefix_featured_image', 1 );
function themeprefix_featured_image() {
	$image = genesis_get_image( array( // more options here -> genesis/lib/functions/image.php
			'format'  => 'html',
			'size'    => 'large',// add in your image size large, medium or thumbnail, or use below
//      'size'    => array(300, 450, true),
			'context' => '',
			'attr'    => array ( 'class' => 'aligncenter' ), // set a default WP image class

		) );
// Extended conditional only prints featured image if set on post. Does not pick the first image. Use 2nd option 
	if ( is_singular() && ( true === $add_single_image ) && has_post_thumbnail() ) {
//	if ( is_singular() ) {
		if ( $image ) {
			printf( '<div class="featured-image-class">%s</div>', $image ); // wraps the featured image in a div with css class you can control
		}
	}
}