How do I generate smaller Triangle indicator when using flutter_fortune_wheel

Question

I am developing a simple application that spins a fortune wheel based on Flutter_Fortune_Wheel. So far everything works as expected except I have kept the size of the wheel small to accomodate other screen assets and the TriangleIndicator size is too large. How do I specify a smaller sized TriangleIndicator?

Applicable code follows:

FortuneWheel(
            animateFirst: false,
            onAnimationEnd: () {
              widget.callback(wheelContents[letterInt]);
              if (wheelContents.length > 1) {
                wheelContents.removeAt(letterInt);
              } else {
                print('***** Puzzle Solved!*****');
              }
            },
            selected: selected.stream,
            indicators: const <FortuneIndicator>[
              FortuneIndicator(
                alignment: Alignment
                    .topCenter, // <-- changing the position of the indicator
                child: TriangleIndicator(
                  color:
                      Colors.amber, // <-- changing the color of the indicator
                ),
              ),
            ],
            items: [
              for (var ltr in wheelContents) FortuneItem(child: Text(ltr)),
            ],
          ),

TIA