Replace bbPress avatar with PeepSo avatar

// You can add the following function inside child theme functions.php or use Code Snippet plugin

add_filter( 'get_avatar', 'wb_peepso_bbpress_get_avatar', 10, 6 );
function wb_peepso_bbpress_get_avatar( $avatar, $id_or_email, $args_size, $args_default, $args_alt, $args ) {
    if( is_bbpress() ) {
        $peepSoUser = PeepSoUser::get_instance();
        $avatar_url = $peepSoUser->get_avatar();
        $avatar = sprintf(
            "<img alt='%s' src='%s' srcset='%s' class='%s' height='%d' width='%d' %s/>",
            esc_attr( $args['alt'] ),
            esc_url( $avatar_url ),
            esc_url( $avatar_url ) . ' 2x',
            esc_attr( join( ' ', $class = array( 'avatar avatar-14 photo' ) ) ),
            (int) $args['height'],
            (int) $args['width'],
            $args['extra_attr']
        );
    }
    return $avatar;
}