if (skin != null && !skin.equals("0")) {
SubstanceLookAndFeel.setSkin(skin);
// load it
YMessagesDialog ymd = new YMessagesDialog(I18N.t("Kann Systemicons nicht laden."), "substance.systemicons");
IconCache.loadSystmIcons(ymd);
ymd.showOk();
} else {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
// SwingUtilities.updateComponentTreeUI(YaFrame.get());
SystemHelper.restart();
}