Filtering Allowed Taxonomies in the Advanced Categories Widget

filter_acatw_allowed_taxonomies.php

<?php 
/**
 *  This will ADD a custom taxonomy to the allowed taxonomies used by the widget
 * */
function filter_acatw_allowed_taxonomies( $taxonomies ){
    
    $taxonomies['project_category']= 'Project Categories';
    
    return $taxonomies;
}
add_filter( 'acatw_allowed_taxonomies', 'filter_acatw_allowed_taxonomies' );
?>

<?php 
/**
 *  This will REPLACE the allowed taxonomies with a custom taxonomy
 * */
function filter_acatw_allowed_taxonomies( $taxonomies ){
  
    $taxonomies = array();
    
    $taxonomies['project_category']= 'Project Categories';
    
    return $taxonomies;
}
add_filter( 'acatw_allowed_taxonomies', 'filter_acatw_allowed_taxonomies' );
?>