private void openProjectArchive(SourceArchive dataTypeSource) {
		String domainFileID = dataTypeSource.getDomainFileID();
		DomainFile domainFile =
			plugin.getTool().getProject().getProjectData().getFileByID(domainFileID);
		if (domainFile == null) {
			createInvalidArchiveNode(dataTypeSource);
			return;
		}
		plugin.openArchive(domainFile);
	}
Notification that the program is closed. Remove the root category
for the program from the provider.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/datamgr/archive/DataTypeManagerHandler.java