Nice. A small change and a big difference. Well done!
fullscreen /**
* Random.
*
* Random numbers create the basis of this image.
* Each time the program is loaded the result is different.
*/
size(400, 400);
smooth();
colorMode(HSB);
background(255);
strokeWeight(25);
translate (200,200);
for(int i = 0; i < width; i++) {
stroke (random(150), random(200), random (255));
float x = random(300, 300);
line(i, 0, x, height);
rotate (radians (25));
}