Compares lines between canvas.drawLine and canvas.drawVertices

my_painter.dart

class MyPainter extends CustomPainter {
  @override
  void paint(Canvas canvas, Size size) {
    final brush = Paint()
      ..color = Colors.blue
      ..strokeWidth = 4
      ..style = PaintingStyle.stroke;

    canvas.drawVertices(
      UI.Vertices(
        VertexMode.triangleStrip,
        [
          Offset(0, 0),
          Offset(0, size.height),
          Offset(size.width, 0),
        ],
      ),
      BlendMode.dstIn,
      brush,
    );

    canvas.drawLine(
      Offset(0, 0),
      Offset(size.width, size.height),
      brush,
    );
  }

  @override
  bool shouldRepaint(CustomPainter oldDelegate) => true;
}