!7

static ScreenLens lens;
static JTextArea taResult;
static new SingleThread singleThread;
static long time;

p-substance {
  lens = new ScreenLens().start();
  taResult = jTextArea();
  addToWindow(lens.is, withTopMargin(jMinHeight(100, wrap(taResult))));
  lens.onImageChange = r {
    //if (time != 0) print((sysNow()-time) + " ms");
    //time = sysNow();
    singleThread.run(r {
      setText(taResult, analyze(lens.is.getImage()))
    });
  };
}

static S analyze(BufferedImage img) {
  //RGBImage rgb = new RGBImage(img);
  BWImage bw = new BWImage(img);
  ret "Color at pointer: " + colorAtMousePointer()
    + "\nBrightness: " + bw.averageBrightness();
}

Began life as a copy of #1006527