createCanvas(200, 200);

  stroke(0, 200, 0); // Green stroke color.

  push(); // Save the original unrotated coordinate system with origin top left.

  strokeWeight(5); // 5 pixel stroke width.

  stroke(200, 0, 0); // Red stroke color.

  translate(100, 50); // Move the origin to (100, 50)

  rotate(PI / 4); // Rotate coordinate system by PI/4 radians (45 degrees).

  scale(2, 2); // Double the scale.

  rect(0, 0, 50, 50); // Draw a red diamond with thick lines.

  pop(); // Restore the original drawing styles and coordinate system.

  rect(5, 5, 50, 50); // Draw a green square with a thin lines in the top left corner.

}