<ol class="comment-list"> <?php wp_list_comments( array( 'style' => 'ol', 'short_ping' => true, 'avatar_size' => 34, ) ); ?> </ol><!-- .comment-list -->
This is controlling the
avatar size →
'avatar_size' => 34, →
I want to replace this with an arrangement where inside a square box(background) I will have First letter of the name in the absence of an avatar. How can this be accomplished?