The splash screen displays until Smalltalk code closes it. By default, the splash screen displays until all startUp methods have run, at which time the class method run in the EsImageStartUp class invokes self splashShutDown, which closes the splash screen.

To have the splash screen display longer, you can override the splashShutDown method with an empty method in a subclass. The subclass is usually a subclass of EpRuntimeStartUp that affects your packaged runtime image. You are then responsible for sending System splashShutDown at some later time.