What-are-red-and-blue-horizontal-lines-on-the-chart

CODE:

using WealthLab.Backtest;
using System;
using WealthLab.Core;
using WealthLab.Data;
using WealthLab.Indicators;
using System.Collections.Generic;

namespace WealthScript2 
{
   public class MyStrategy : UserStrategyBase
   {
      //create indicators and other objects here, this is executed prior to the main trading loop
      public override void Initialize(BarHistory bars)
      {
         kUp = new KeltnerUpper(bars, 10);
         kLower = new KeltnerLower(bars, 10);
         PlotIndicatorLine(kUp, WLColor.Red);
         PlotIndicatorLine(kLower, WLColor.Green);
      }

      //execute the strategy rules here, this is executed once for each bar in the backtest history
      public override void Execute(BarHistory bars, int idx)
      {
         //int index = idx;
         
         {
            if (bars.Low[idx] <= kLower[idx])
            {
               Backtester.CancelationCode = 1;
               _transaction = PlaceTrade(bars, TransactionType.Buy, OrderType.Market, 0, 0, signalName: "Buy");
            }         
         }

         {
            foreach (Position foundPosition0 in OpenPositions)
            {
               if (foundPosition0.PositionTag == 0)
               {
                  Backtester.CancelationCode = 1;
                  value = (10.00 / 100.0) + 1.0;
                  ClosePosition(foundPosition0, OrderType.Limit, foundPosition0.EntryPrice * value, "");
               }
            }
         }
         
      }

      //declare private variables below
      private double value, targetPrice;
      private Transaction _transaction;
      IndicatorBase kUp, kLower;
      //Transaction t;
   }
}