private void drawInstruction(Graphics g) {
        g.setFont(new Font("Courier", Font.PLAIN, 12));

        if (physicalImage != null) {
            g.drawImage(physicalImage, 0, 15, this);
        } else {
            g.setColor(physicalColor);
            g.fillRoundRect(0, 15, 14, 14, 10, 10);
        }
        g.setColor(physicalColor);
        g.drawString("PHYSICAL", 18, 29);

        if (sensitivityImage != null) {
            g.drawImage(sensitivityImage, 110, 15, this);
        } else {
            g.setColor(sensitivityColor);
            g.fillRoundRect(110, 15, 14, 14, 10, 10);
        }
        g.setColor(sensitivityColor);
        g.drawString("SENSITIVITY", 128, 29);

        if (intellectualImage != null) {
            g.drawImage(intellectualImage, 220, 15, this);
        } else {
            g.setColor(intellectualColor);
            g.fillRoundRect(220, 15, 14, 14, 10, 10);
        }
        g.setColor(intellectualColor);
        g.drawString("INTELLECTUAL", 238, 29);
    }