titledBorder.setTitleColor(TangoColorFactory.CHAMELEON_3);
panel.setBorder(BorderFactory.createCompoundBorder(titledBorder,
BorderFactory.createEmptyBorder(5, 5, 5, 5)));
panel.add(createExampleButton(new NQueensApp()));
panel.add(createExampleButton(new CloudBalancingApp()));
panel.add(createExampleButton(new TspApp()));
panel.add(createExampleButton(new DinnerPartyApp()));
panel.add(createExampleButton(new TennisApp()));
return panel;
}