public double execute(DataStack data) {
   data.usesImaging = true;
   data.value = ((ExtraShapeData) data.getData()).getEndBalanceX();
   return debugger == null ? data.value : debugger.record(data.value);
 }
 public double execute(DataStack data) {
   data.usesImaging = true;
   data.value = ((ExtraShapeData) data.getData()).getNormalisedRedStdDev();
   return debugger == null ? data.value : debugger.record(data.value);
 }