private BeanProxy getSelectedStyleSheetProxy() {
BeanProxy variant = context.getSelectedVariant();
BaseProxy content = (BaseProxy) variant.getPropertyProxy(PolicyModel.CONTENT);
BeanProxy concreteContent = (BeanProxy) content.getConcreteProxy();
if (concreteContent == null) {
ThemeContentBuilder contentModel =
InternalPolicyFactory.getInternalInstance().createThemeContentBuilder();
content.setModelObject(contentModel);
concreteContent = (BeanProxy) content.getConcreteProxy();
}