Flutter: tough_bikes, draw random lines

main.dart

@override
void paint(Canvas canvas, Size size) {
  // This [Rect] will fill the whole canvas we got
  var fillRect = Rect.fromPoints(Offset.zero, size.bottomRight(Offset.zero));
  var count = 100;
  
  // Background for our texture
  canvas.drawRect(fillRect, fillPaint);
  
  for (var i = 0; i < count; i++) {
    canvas.drawLine(randomOffset(size), randomOffset(size), linePaint);
  }
}