Backend\Modules\Extensions\Actions\DetailTheme::loadData PHP Method

    private function loadData()
    {
        // inform that the theme is not installed yet
        if (!BackendExtensionsModel::isThemeInstalled($this->currentTheme)) {
            $this->warnings[] = array('message' => BL::getMessage('InformationThemeIsNotInstalled'));
        }
        // path to information file
        $pathInfoXml = FRONTEND_PATH . '/Themes/' . $this->currentTheme . '/info.xml';
        // information needs to exists
        if (is_file($pathInfoXml)) {
            try {
                // load info.xml
                $infoXml = @new \SimpleXMLElement($pathInfoXml, LIBXML_NOCDATA, true);
                // convert xml to useful array
                $this->information = BackendExtensionsModel::processThemeXml($infoXml);
                // empty data (nothing useful)
                if (empty($this->information)) {
                    $this->warnings[] = array('message' => BL::getMessage('InformationFileIsEmpty'));
                }
            } catch (\Exception $e) {
                // warning that the information file is corrupt
                $this->warnings[] = array('message' => BL::getMessage('InformationFileCouldNotBeLoaded'));
            }
        } else {
            // warning that the information file is missing
            $this->warnings[] = array('message' => BL::getMessage('InformationFileIsMissing'));
        }
    }