private Icon getIcon(Program program) {
		ProjectLocator projectLocator = program.getDomainFile().getProjectLocator();
		if (projectLocator != null && projectLocator.isTransient()) {
			return TRANSIENT_ICON;
		}
		return EMPTY8_ICON;
	}
Plugin to show a "tab" for each open program; the selected tab is the activated program.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/progmgr/MultiTabPlugin.java