[Ohna]

Thank’s _CK_ !!

But, your code doesn’t seem to work in bbPress 1.0 (I tried to add it in functions.php or directly in topic.php).

However I have no problem if I add your code in bbPress 9.0 theme.

I want to add ” <?php echo bb_get_avatar( $poster_id->ID, $size , $default); ?> ” in your code, but I can not ?