genesis-author-box-avatar-size.php

<?php
/**-------------------------------------------
* @package Code Snippets
* @link http://rhythmshahriar.com/code/
* @author Rhythm <[email protected]>
* @copyright Copyright (c) 2013, Rhythm Shahriar
-------------------------------------------------*/

/** Modify the size of the Gravatar in the author box */
add_filter( 'genesis_author_box_gravatar_size', 'rs_author_box_gravatar_size' );
function rs_author_box_gravatar_size($size) {
return '150';
}

genesis-comment-avatar-size.php

<?php
/**-------------------------------------------
* @package Code Snippets
* @link http://rhythmshahriar.com/code/
* @author Rhythm <[email protected]>
* @copyright Copyright (c) 2013, Rhythm Shahriar
-------------------------------------------------*/

// Custom Comment Avavtar Size
add_filter( 'genesis_comment_list_args', 'rs_comment_list_args' );
function rs_comment_list_args( $args ) {
$args['avatar_size'] = 100;
return $args;
}