 <?php
//* Do NOT include the opening php tag
 
//* Modify the size of the Gravatar in the author box
add_filter( 'genesis_author_box_gravatar_size', 'author_box_gravatar_size' );
function author_box_gravatar_size( $size ) {
	return 80;
}

	<?php
	//* Do NOT include the opening php tag

	//* Modify the size of the Gravatar in the author box
	add_filter( 'genesis_author_box_gravatar_size', 'author_box_gravatar_size' );
	function author_box_gravatar_size( $size ) {
	return 80;
	}