(int) (Math.random() * 255), (int) (Math.random() * 255));
setColor((SequenceNode) tree.getGroups().elementAt(i), col.brighter());
(int) (Math.random() * 255), (int) (Math.random() * 255));
setColor((SequenceNode) tree.getGroups().elementAt(i), col.brighter());