srecord noeq PadImageToAspectRatio(BufferedImage img, Ratio ratio, Color color) > Meta {
  BufferedImage out;
  
  *(BufferedImage *img, double ratio, Color *color) {
    this.ratio = Ratio(ratio);
  }
  
  BufferedImage get() {
    int w = img.getWidth(), h = img.getHeight();
    double actualRatio = doubleRatio(w, h);
    double targetRatio = this.ratio!;
    int w2 = w, h2 = h;
    if (targetRatio > actualRatio) // target ratio is wider
      w2 = iround(h2*targetRatio);
    else
      h2 = iround(w2/targetRatio);
      
    if (scaffolding()) printVars(+w, +h, +w2, +h2, +actualRatio, +targetRatio, ratio := this.ratio);
    if (w == w2 && h == h2) ret img;
    
    out = isFullyTransparent(color)
      ? newTransparentImage(w2, h2)
      : newImage(w2, h2, color);
    drawImageOnImage(img, out, (w2-w)/2, (h2-h)/2);
    ret out;
  }
}

Began life as a copy of #1007278