public function __construct()
{
$this->defaultIcon = '../' . ExtensionManagementUtility::siteRelPath('fluidcontent') . 'Resources/Public/Icons/Plugin.svg';
$this->extConf = unserialize($GLOBALS['TYPO3_CONF_VARS']['EXT']['extConf']['fluidcontent']);
$this->extConf['iconWidth'] = $this->extConf['iconWidth'] ?: self::ICON_WIDTH;
$this->extConf['iconHeight'] = $this->extConf['iconHeight'] ?: self::ICON_HEIGHT;
}