in domain/src/main/java/demoapp/dom/domain/objects/DomainObjectLayout/xxxUiEvent/DomainObjectLayoutXxxUiEventSubscriber.java [64:69]
void onCssClassUiEvent(final DomainObjectLayoutXxxUiEventEntity.CssClassEvent cssClassUiEvent) {
val source = cssClassUiEvent.getSource();
cssClassUiEvent.setCssClass(hasNameInFirstHalfOfAlphabet(source)
? "custom1"
: "custom2");
}