anchor.diff:      required this.iconImage,
       required this.alphaCover, required this.alphaPlus,
       required this.alphaLibre, required this.alphaLoading,
  -    required this.arcLoading
  +    required this.arcStart, required this.arcEnd, required this.arcAlpha
     });
   
       @override
  
positive.code: 
    _updateAnimations() {
      print("update anim");
      if (appModel.working) {
        animCtrlLoading.forward();
        animCtrlArcLoading.reset();
        animCtrlArcLoading.repeat();
      } else {
        animCtrlLoading.reverse();
      }
      if (appModel.state == AppState.activated) {
        animCtrlLibre.forward();
  
negative.code:         ..strokeWidth = ringWith;
  
        Paint loadingArcPaint = Paint()
          ..color = Colors.white.withOpacity(arcAlpha)
          ..style = PaintingStyle.stroke
          ..strokeWidth = ringWith * 0.5;
  
  