}
generators.add(new BasicSceneGenerator());
generators.add(new RGroupGenerator());
generators.add(new RingGenerator());
generators.add(new ExtendedAtomGenerator());
generators.add(new LonePairGenerator());
generators.add(new RadicalGenerator());
generators.add(new ExternalHighlightAtomGenerator());
generators.add(new ExternalHighlightBondGenerator());
generators.add(new HighlightAtomGenerator());
generators.add(new HighlightBondGenerator());