Replace Genesis favicon with full favicon set
<?php // Copy everything except for this first line
// Favicons generated by realfavicongenerator.net
// These should be added in wp-content/themes/child-theme/images/favicons/
remove_action('wp_head', 'genesis_load_favicon');
add_action('wp_head', 'custom_favicon');
function custom_favicon(){
?>
<link rel="icon" type="image/png" href="<?php bloginfo( 'stylesheet_directory' ) ?>/images/favicons/favicon-192x192.png" sizes="192x192">
<link rel="icon" type="image/png" href="<?php bloginfo( 'stylesheet_directory' ) ?>/images/favicons/favicon-160x160.png" sizes="160x160">
<link rel="icon" type="image/png" href="<?php bloginfo( 'stylesheet_directory' ) ?>/images/favicons/favicon-96x96.png" sizes="96x96">
<link rel="icon" type="image/png" href="<?php bloginfo( 'stylesheet_directory' ) ?>/images/favicons/favicon-16x16.png" sizes="16x16">
<link rel="icon" type="image/png" href="<?php bloginfo( 'stylesheet_directory' ) ?>/images/favicons/favicon-32x32.png" sizes="32x32">
<meta name="msapplication-TileColor" content="#ffc40d">
<meta name="msapplication-TileImage" content="/mstile-144x144.png">
<?php
}