cb.setLineWidth(5);
cb.setColorStroke(Color.GRAY);
cb.moveTo(centerX , document.top());
cb.lineTo(centerX, document.bottom());
cb.stroke();
cb.moveTo(centerX, diamondTop);
cb.lineTo(centerX - (diamondWidth/2), diamondTop - (diamondHeight / 2));
cb.lineTo(centerX, diamondTop - diamondHeight);
cb.lineTo(centerX + (diamondWidth/2), diamondTop - (diamondHeight / 2));
cb.lineTo(centerX, diamondTop);
cb.setColorFill(Color.GRAY);