public static void drawEmptyCircle(Graphics g, int x, int y){
		// d = EMPTY_CIRCLE
		// center (x + EMPTY_CIRCLE) / 2 , (y + EMPTY_CIRCLE) / 2  
//		for (int i = 255; i >= 0; i-= (255/10)){
//			g.setColor(new Color(i,0,255));
//			
//		}
		for (int i = 10; i >= -10; i--){
			g.setColor(new Color(Math.abs(i * (127 / 10))+127,0,255));
//			g.fillOval((x + EMPTY_CIRCLE) / 2 + (EMPTY_CIRCLE / 2) - EMPTY_CIRCLE_THK / 2 + i * EMPTY_CIRCLE_THK / 20,
//					(y + EMPTY_CIRCLE) / 2 + (EMPTY_CIRCLE / 2) - EMPTY_CIRCLE_THK / 2 + i * EMPTY_CIRCLE_THK / 20,
//					EMPTY_CIRCLE - EMPTY_CIRCLE_THK / 2 + i * EMPTY_CIRCLE_THK / 20, 
//					EMPTY_CIRCLE - EMPTY_CIRCLE_THK / 2 + i * EMPTY_CIRCLE_THK / 20);
			g.drawOval(x - i * EMPTY_CIRCLE_THK / 20,
					y - i * EMPTY_CIRCLE_THK / 20,
					EMPTY_CIRCLE + i * EMPTY_CIRCLE_THK / 10, 
					EMPTY_CIRCLE + i * EMPTY_CIRCLE_THK / 10);
		}
		//g.setColor(MainFrame.getContentPane().getBackground());
		
		//g.fillOval(x + EMPTY_CIRCLE_THK / 2, y + EMPTY_CIRCLE_THK / 2, EMPTY_CIRCLE - EMPTY_CIRCLE_THK, EMPTY_CIRCLE - EMPTY_CIRCLE_THK);
	}