void setup() {
  size(400, 400);
  background(255);
  
  // Define data for the bars
  int[] data = {50, 100, 150, 200};
  
  // Define colors for the bars
  color[] colors = {color(255, 0, 0), color(0, 255, 0), color(0, 0, 255), color(255, 255, 0)};
  
  // Draw bars
  float barWidth = width / data.length;
  for (int i = 0; i < data.length; i++) {
    float barHeight = map(data[i], 0, max(data), 0, height);
    strokeWeight(2 + i * 0.5); // Increase line thickness for larger bars
    strokeCap(SQUARE); // Change line ending
    fill(colors[i]);
    rect(i * barWidth, height - barHeight, barWidth, barHeight);
    
    // Display values above the bars
    textSize(12);
    textAlign(CENTER);
    fill(0);
    text(str(data[i]), i * barWidth + barWidth / 2, height - barHeight - 5);
  }
}