protected static DomainFileFilter getDefaultFilter(DataTreeDialogType type) {
		if (type == CHOOSE_FOLDER || type == OPEN) {
			// return filter which forces folder selection and allow navigation into linked-folders
			return new DomainFileFilter() {

				@Override
				public boolean accept(DomainFile df) {
					return true; // show all files (legacy behavior)
				}
			};
		}
		return null;
	}
Create the combo box panel that shows list of project names that
are currently open, including the active project.
Ghidra/Features/Base/src/main/java/ghidra/framework/main/AbstractDataTreeDialog.java