svoid drawPixel(BufferedImage image, int x, int y, Color color) {
  drawPixel(imageGraphics(image), x, y, color);
}

svoid drawPixel(Graphics2D g, int x, int y, Color color) {
  g.setColor(color);
  g.drawLine(x, y, x, y);
}

svoid drawPixel(BufferedImage image, Pt p, Color color) {
  drawPixel(image, p.x, p.y, color);
}

svoid drawPixel(Graphics2D g, Pt p, Color color) {
  drawPixel(g, p.x, p.y, color);
}