private JPanel createEastPanel(JPanel statusPanel) {
		JPanel eastPanel = new JPanel(new HorizontalLayout(0));

		eastPanel.add(statusPanel);
		eastPanel.add(new StatusBarSpacer());

		return eastPanel;
	}
The east panel contains the status panel and a spacer
Ghidra/Framework/Docking/src/main/java/docking/StatusBar.java