public void renderGraphLabelBorders(Graph graph) {
}
public void renderNode(Node node) {
Point center = node.getPosition();
Color c = node.getColor();
Color bc = node.getBorderColor();
cb.setRGBColorStroke(bc.getRed(), bc.getGreen(), bc.getBlue());
cb.setLineWidth(node.getBorderWidth());
cb.setRGBColorFill(c.getRed(), c.getGreen(), c.getBlue());
cb.circle(center.getX(), -center.getY(), node.getRadius());
cb.fillStroke();
}