anchor.diff:                      width: double.infinity,
                       height: 50,
                       child: FlatButton(
  -                        color: ColorPrimary,
  +                        color: darkButtonColor,
                           disabledColor: ColorPrimary,
                           disabledTextColor: Colors.grey,
  -                        textColor: darkButtonColor ,
  +                        textColor: ColorPrimary ,
                           shape: ContinuousRectangleBorder(
                               side: BorderSide(
                                   color: darkButtonColor,
  
positive.code:                   width: double.infinity,
                    height: 45,
                    child: FlatButton(
                        color: staffSelected ? ColorPrimary : darkButtonColor,
                        textColor: staffSelected ? darkButtonColor : ColorPrimary,
                        shape: ContinuousRectangleBorder(
                            side: BorderSide(
                                color: darkButtonColor,
  
negative.code:                   width: double.infinity,
                    height: 45,
                    child: FlatButton(
                        color: visitorSelected ? darkButtonColor : ColorPrimary,
                        textColor: visitorSelected ? ColorPrimary : darkButtonColor,
                        shape: ContinuousRectangleBorder(
                            side: BorderSide(
                                color: darkButtonColor,
  