@Override
		public boolean accept(File pathname, GhidraFileChooserModel model) {
			return (pathname.isDirectory()) ||
				(pathname.getName().endsWith(PREFERENCES_FILE_EXTENSION));
		}
Status of a particular compiler specification element
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/plugin/processors/sleigh/SpecExtensionPanel.java