public function get_scss_property() {
        if ($this->scsscache === null) {
            $configs = [$this] + $this->parent_configs;
            $scss = null;

            foreach ($configs as $config) {
                $path = "{$config->dir}/scss";

                // We collect the SCSS property until we've found one.
                if (empty($scss) && !empty($config->scss)) {
                    $candidate = is_string($config->scss) ? "{$path}/{$config->scss}.scss" : $config->scss;
                    if ($candidate instanceof Closure) {
                        $scss = $candidate;
                    } else if (is_string($candidate) && is_readable($candidate)) {
                        $scss = $candidate;
                    }
                }

                // We collect the import paths once we've found a SCSS property.
                if ($scss && is_dir($path)) {
                    $paths[] = $path;
                }

            }

            $this->scsscache = $scss !== null ? [$paths, $scss] : false;
        }

        return $this->scsscache;
    }