How to apply the active class to an item and all ancestors

By default, the active menu item is applied with a current class and its ancestors are applied with a current_ancestor class. To apply a class other than the default or apply the same class to both, you can either pass it as an option to the render method of your used renderer:

<?php
$renderer->render($item, ['currentClass' => 'active', 'ancestorClass' => 'active']);

or pass it as argument to the constructor of the used renderer:

<?php
$renderer = new Renderer($matcher, ['currentClass' => 'active', 'ancestorClass' => 'active']);