WordPress - Genesis: Modify comment form

gistfile1.php

// Modify the Genesis Default Comment Form 
    add_filter('genesis_comment_form_args','op_email_note');
    function op_email_note() {
    global $user_identity, $id;
    
        $req = get_option( 'require_name_email' );
        $aria_req  = ( $req ? ' aria-required="true"' : '' );
    
        $commenter = wp_get_current_commenter();
        if (empty($commenter['comment_author_email'])) {
            $commenter['comment_author'] = 'Your Name';
            $commenter['comment_author_email'] = 'Email Address';
        }
    
        $args = array(
            'fields' => array(
                'author' => '<p class="comment-form-author">' .
                            '<input x-autocompletetype="name-full" id="author" name="author" type="text" value="' . esc_attr( $commenter['comment_author'] ) . '" onblur="if (this.value == \'\') {this.value = \'Your Name\';}"  onfocus="if (this.value == \'Your Name\') {this.value = \'\';}" size="30" tabindex="1"' . $aria_req . ' />' .
                            ( $req ? '<span class="required">*</span>' : '' ) .
                            '</p><!-- #form-section-author .form-section -->',
            
                'email' =>  '<p class="comment-form-email">' .
                            '<input x-autocompletetype="email" id="email" name="email" type="text" value="' . esc_attr( $commenter['comment_author_email'] ) . '" onblur="if (this.value == \'\') {this.value = \'Email Address\';}"  onfocus="if (this.value == \'Email Address\') {this.value = \'\';}" size="30" tabindex="2"' . $aria_req . ' />' .
                            ( $req ? '<span class="required">*</span>' : '' ) .
                            ' (will remain private)</p><!-- #form-section-email .form-section -->',
            
                'url' =>    ''
            ),
            'comment_field' =>  '<p class="comment-form-comment">' .
                                '<textarea id="comment" name="comment" cols="45" rows="8" tabindex="3" aria-required="true"></textarea>' .
                                '</p><!-- #form-section-comment .form-section -->',
            'title_reply' => __( 'Add Your Comment', 'genesis' ),
            'label_submit' => __( 'Post Comment', 'genesis' ),
            'comment_notes_before' => '',
            'comment_notes_after' => ''
        );
        return $args;
    }