static int imageIcon_cacheSize = 10;
sbool imageIcon_verbose;
static Map<S, ImageIcon> imageIcon_cache;
static Lock imageIcon_lock = lock();
static new ThreadLocal<Bool> imageIcon_fixGIF;

// not going through BufferedImage preserves animations
static ImageIcon imageIcon(S imageID) ctex {
  if (imageID == null) null;
  lock imageIcon_lock;
  if (imageIcon_cache == null)
    imageIcon_cache = new MRUCache(imageIcon_cacheSize);
  imageID = fsI(imageID);
  ImageIcon ii = imageIcon_cache.get(imageID);
  if (ii == null) {
    if (imageIcon_verbose) print("Loading image icon: " + imageID);
    File f = loadBinarySnippet(imageID);
    ifndef DontFixGIFs
      Bool b = imageIcon_fixGIF!;
      if (!isFalse(b))
        ii = new ImageIcon(loadBufferedImageFixingGIFs(f));
      else
    endifndef
    ii = new ImageIcon(f.toURI().toURL());
  } else
    imageIcon_cache.remove(imageID); // move to front of cache on access
  imageIcon_cache.put(imageID, ii);
  ret ii;
}

// doesn't fix GIFs
static ImageIcon imageIcon(File f) ctex {
  ret new ImageIcon(f.toURI().toURL());
}

static ImageIcon imageIcon(Image img) {
  ret img == null ?: new ImageIcon(img);
}

ifclass RGBImage
  static ImageIcon imageIcon(RGBImage img) {
    ret imageIcon(img.getBufferedImage());
  }
endif