bp-custom.php

// Desactiver avatar buddy
   add_filter( 'bp_core_fetch_avatar_no_grav', '__return_true' );
   //Customiser avatars buddypress


function buddydev_set_default_use_avatar_based_on_member_type( $avatar, $params) {
	$user_id = $params['item_id'];

	$type = bp_get_member_type( $user_id );

	if ( $type == 'premium' ) {
		$avatar = 'http://efficience.kamilane.odns.fr/wp-content/themes/kleo/assets/img/avatar-premium.png';
	} elseif( $type =='classique' ) {
		$avatar = 'http://efficience.kamilane.odns.fr/wp-content/themes/kleo/assets/img/avatar-classique.png';
		} elseif( $type =='jeune-pro' ) {
		$avatar = 'http://efficience.kamilane.odns.fr/wp-content/themes/kleo/assets/img/avatar-jeunepro.png';
	} else {
		$avatar = 'http://example.com/unknown.png';//get_template_directory_uri() . '/assets/images/unknown.png';;
	}

	return $avatar;
}
add_filter( ‘bp_core_default_avatar_user’, ‘buddydev_set_default_use_avatar_based_on_member_type’, 10, 2 );