public function getContentTypeIcon(string $identifier): string
    {
        $icon = $this->resolveIcon($identifier);

        $fragment = null;
        if (strpos($icon, '#') !== false) {
            list($icon, $fragment) = explode('#', $icon);
        }

        return $this->packages->getUrl($icon) . ($fragment ? '#' . $fragment : '');
    }