I reach to display color on the ancestor with the function start_el but not to the sub-menu div and add ACF column class to column ul…
function start_el(&$output, $item, $depth=0, $args=array(), $id = 0) {
$object = $item->object;
$type = $item->type;
$title = $item->title;
$description = $item->description;
$permalink = $item->url;
$color = get_field('couleur_menu', $item->ID);
$output .= "<li class='" . implode(" ", $item->classes) ."' style=background-color:".$color.">";
}
How can I do something close with function start_lvl ?