public function getVariables(Menu $menu, $variables = [])
{
// Get the icon or use blank.
$icon = $menu->icon ? $menu->icon : "";
// Get the URL or use a placeholder.
$url = $this->generateUrl($menu);
// Get the current URL.
$currentUrl = $this->getCurrentUrl();
$variables = ['URL' => $url, 'ICON' => $icon, 'LABEL' => $menu->label, 'CURRENT_URL' => $currentUrl];
return $variables;
}