Super Profit indicator: Help requested in adding email notificaiton

Hello, 

Can someone pls help me in adding email notification to "Super Profit" indicator? It should send an email whenever the color of the dot changes from green to red or vice versa?

Source code below:

using System;
using cAlgo.API;
using System.Runtime.InteropServices;
using cAlgo.API.Indicators;
 
namespace cAlgo.Indicators
{
    [Indicator(IsOverlay = true, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class SuperProfit : Indicator
    {
        // Alert
        [DllImport("user32.dll", CharSet = CharSet.Unicode)]
        public static extern int MessageBox(IntPtr hWnd, String text, String caption, uint type);
 
        [Parameter(DefaultValue = 35)]
        public int DllPeriod { get; set; }
 
        [Parameter(DefaultValue = 1.7)]
        public double Period { get; set; }
 
        [Parameter(DefaultValue = MovingAverageType.Weighted)]
        public MovingAverageType MaType { get; set; }
 
        [Parameter()]
        public DataSeries Price { get; set; }
 
        [Parameter(DefaultValue = 5)]
        public int StopLoss { get; set; }
 
        [Parameter(DefaultValue = 20)]
        public int TakeProfit { get; set; }
 
        [Output("Up", PlotType = PlotType.Points, Thickness = 4)]
        public IndicatorDataSeries UpSeries { get; set; }
 
        [Output("Down", PlotType = PlotType.Points, Color = Colors.Red, Thickness = 4)]
        public IndicatorDataSeries DownSeries { get; set; }
 
 
        private DateTime _openTime;
 
        private MovingAverage _movingAverage1;
        private MovingAverage _movingAverage2;
        private MovingAverage _movingAverage3;
        private IndicatorDataSeries _dataSeries;
        private IndicatorDataSeries _trend;
 
 
        protected override void Initialize()
        {
            _dataSeries = CreateDataSeries();
            _trend = CreateDataSeries();
 
            var period1 = (int)Math.Floor(DllPeriod / Period);
            var period2 = (int)Math.Floor(Math.Sqrt(DllPeriod));
 
            _movingAverage1 = Indicators.MovingAverage(Price, period1, MaType);
            _movingAverage2 = Indicators.MovingAverage(Price, DllPeriod, MaType);
            _movingAverage3 = Indicators.MovingAverage(_dataSeries, period2, MaType);
 
        }
 
        public override void Calculate(int index)
        {
            if (index < 1)
                return;
 
            _dataSeries[index] = 2.0 * _movingAverage1.Result[index] - _movingAverage2.Result[index];
            _trend[index] = _trend[index - 1];
 
            if (_movingAverage3.Result[index] > _movingAverage3.Result[index - 1])
                _trend[index] = 1;
            else if (_movingAverage3.Result[index] < _movingAverage3.Result[index - 1])
                _trend[index] = -1;
 
            if (_trend[index] > 0)
            {
                UpSeries[index] = _movingAverage3.Result[index];
 
                if (_trend[index - 1] < 0.0)
                {
                    UpSeries[index - 1] = _movingAverage3.Result[index - 1];
 
                    if (IsLastBar)
                    {
                        var stopLoss = MarketSeries.Low[index - 1] - StopLoss * Symbol.PipSize;
                        var takeProfit = MarketSeries.Close[index] + TakeProfit * Symbol.PipSize;
                        var entryPrice = MarketSeries.Close[index - 1];
 
                        if (MarketSeries.OpenTime[index] != _openTime)
                        {
                            _openTime = MarketSeries.OpenTime[index];
                            DisplayAlert("Buy signal", takeProfit, stopLoss, entryPrice);
                        }
                    }
                }
 
                DownSeries[index] = double.NaN;
            }
            else if (_trend[index] < 0)
            {
                DownSeries[index] = _movingAverage3.Result[index];
 
                if (_trend[index - 1] > 0.0)
                {
                    DownSeries[index - 1] = _movingAverage3.Result[index - 1];
 
                    if (IsLastBar)
                    {
                        var stopLoss = MarketSeries.High[index - 1] + StopLoss * Symbol.PipSize;
                        var takeProfit = MarketSeries.Close[index] - TakeProfit * Symbol.PipSize;
                        var entryPrice = MarketSeries.Close[index - 1];
 
                        if (MarketSeries.OpenTime[index] != _openTime)
                        {
                            _openTime = MarketSeries.OpenTime[index];
                            DisplayAlert("Sell signal", takeProfit, stopLoss, entryPrice);
                        }
                    }
                }
 
                UpSeries[index] = double.NaN;
            }
 
        }
 
        protected void DisplayAlert(string tradyTypeSignal, double takeProfit, double stopLoss, double entryPrice)
        {
            string entryPricetext = entryPrice != 0.0 ? string.Format(" at price {0}", Math.Round(entryPrice, 4)) : "";
            string takeProfitText = takeProfit != 0.0 ? string.Format(", TP on  {0}", Math.Round(takeProfit, 4)) : "";
            string stopLossText = stopLoss != 0.0 ? string.Format(", SL on {0}", Math.Round(stopLoss, 4)) : "";
 
            var alertMessage = string.Format("{0} {1} {2} {3} {4}", tradyTypeSignal, entryPricetext, takeProfitText, stopLossText, Symbol.Code);
 
            MessageBox(new IntPtr(0), alertMessage, "Trade Signal", 0);
 
        }
    }
}