public function backendEnqueueCss() { $css = [Functions::buildActionName('awesome') => ['deps' => [], 'url' => $this->getAwesomeURL(), 'version' => null], Functions::buildActionName('backend') => ['deps' => [Functions::buildActionName('awesome')], 'url' => Url::getCssUrl('backend')]]; foreach ($css as $k => $v) { \wp_enqueue_style($k, $v['url'], isset($v['deps']) ? $v['deps'] : [], $this->getVersion($v)); } }