private Properties loadDerivedColorKeys() {
		Properties properties = new Properties();
		try( InputStream in = getClass().getResourceAsStream( "/com/formdev/flatlaf/extras/resources/DerivedColorKeys.properties" ) ) {
			properties.load( in );
		} catch( IOException ex ) {
			ex.printStackTrace();
		}
		return properties;
	}
Dumps look and feel UI defaults to files.

@author Karl Tauber
flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/uidefaults/UIDefaultsDump.java