init method

void init()

Implementation

void init() {
  backPaint.style = PaintingStyle.fill;
  backPaint.color = Colors.white;

  fillPaint.style = PaintingStyle.fill;
  fillPaint.color = Colors.white;

  strokePaint.style = PaintingStyle.stroke;
  strokePaint.color = Colors.black;
  strokePaint.strokeCap = StrokeCap.butt;
  strokePaint.strokeJoin = StrokeJoin.bevel;
}