Color yellow = Color.YELLOW;
graphics.setColor(yellow);
graphics.fillOval(extent.x , extent.y, extent.width, extent.height);
Color orange = Color.ORANGE;
graphics.setColor(orange);
graphics.drawOval(extent.x, extent.y, extent.width, extent.height);
// set back to his default color
graphics.setColor(createColor(mark.hashCode()));
} else {
graphics.fillOval(extent.x, extent.y, extent.width, extent.height);
}