What is better approach to dispose Brush in User Control

protected override void OnPaint(PaintEventArgs e)
    {
        e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
        using (SolidBrush b = new SolidBrush(Color.FromArgb(129, 242, 121)))
        {
            for (int i = 0; i < 12; i++)
            {
                e.Graphics.FillPath(b, path[i]);
            }
        }
        base.OnPaint(e);
    }

private SolidBrush _b= null;

    private SolidBrush b
    {
        get
        {
            if (_b== null)
                return _b= new SolidBrush(Color.FromArgb(129, 242, 121));
            else
                return _b;
        }
    }