Processing.org code for the cover of http://8tracks.com/danielrt/38

38.pde

int i, j, gray;
PGraphics n38; // raster "38."
PFont fnt=createFont("HelveticaNeueLTStd-Bd", 54);
int[][] c={ // colors
  {254, 183, 0}, // orange
  {5, 130, 204} // blue
};

void setup() {
  size(1440, 1440);
  background(255);
  strokeWeight(1);
  n38=createGraphics(90, 90); // raster "38."
  n38.beginDraw();
  n38.background(0);
  n38.fill(255);
  n38.textFont(fnt);
  n38.textAlign(CENTER, TOP);
  n38.text("38.", 45, 40);
  n38.endDraw();
  noFill();
  for (j=0; j<90; j++) {
    beginShape();
    for (i=0; i<90; i++) {
      gray=round(red(n38.pixels[i+j*n38.width])/16);
      stroke(
        c[0][0]+(c[1][0]-c[0][0])/180*(i+j),
        c[0][1]+(c[1][1]-c[0][1])/180*(i+j),
        c[0][2]+(c[1][2]-c[0][2])/180*(i+j)
      );
      curveVertex(i*16-round(random(gray)), j*16+4-round(random(gray)));
      curveVertex(i*16+8+round(random(gray)), j*16+(i%2)*8+round(random(gray)));
    }
    endShape();
  }
   save("38.png");
}