public static void disposeSplashScreen() {
		hideSplashWindowTimer.stop();
		closeSplashScreen();
		if (hiddenFrame != null) {
			WindowListener[] windowListeners = hiddenFrame.getWindowListeners();
			for (WindowListener l : windowListeners) {
				hiddenFrame.removeWindowListener(l);
			}
			hiddenFrame.setVisible(false);
			hiddenFrame.dispose();
			hiddenFrame = null;
		}
	}
Remove the splash screen; Ghidra is done loading.
Ghidra/Framework/Docking/src/main/java/docking/framework/SplashScreen.java