New to MQL and would like help to transfer some esignal custom studies

////DivergenceBar/////

//{{EFSWizard_Declarations
var vLastAlert = -1;
//}}EFSWizard_Declarations

function preMain() {
//{{EFSWizard_Code_PreMain_setPriceBarColor
setColorPriceBars(true);
//}}EFSWizard_Code_PreMain_setPriceBarColor
/**
* This function is called only once, before any of the bars are loaded.
* Place any study or EFS configuration commands here.
*/
//{{EFSWizard_PreMain
setPriceStudy(true);
setStudyTitle("");
//}}EFSWizard_PreMain

}

function main() {
/**
* The main() function is called once per bar on all previous bars, once per
* each incoming completed bar, and if you don't have 'setComputeOnClose(true)'
* in your preMain(), it is also called on every tick.
*/

//{{EFSWizard_Expressions
//{{EFSWizard_Expression_1
if (
high() > high(-1) &&
close() < open()
) onAction1()
//}}EFSWizard_Expression_1

//{{EFSWizard_Expression_2
else if (
low() < low(-1) &&
close() > open()
) onAction2()
//}}EFSWizard_Expression_2

//{{EFSWizard_Expression_3
else if (
Strategy.isInTrade() == Strategy. isInTrade()
) onAction3();
//}}EFSWizard_Expression_3

//}}EFSWizard_Expressions

//{{EFSWizard_Return
return null;
//}}EFSWizard_Return

}

function postMain() {
/**
* The postMain() function is called only once, when the EFS is no longer used for
* the current symbol (ie, symbol change, chart closing, or application shutdown).
*/
}

//{{EFSWizard_Actions
//{{EFSWizard_Action_1
function onAction1() {
if (vLastAlert != 1) Strategy.doShort("", Strategy. CLOSE, Strategy. THISBAR, Strategy.DEFAULT, 0);
setPriceBarColor(Color.RGB(255,0,0));
vLastAlert = 1;
}
//}}EFSWizard_Action_1

//{{EFSWizard_Action_2
function onAction2() {
if (vLastAlert != 2) Strategy.doLong("", Strategy. CLOSE, Strategy. THISBAR, Strategy.DEFAULT, 0);
setPriceBarColor(Color.RGB(0,0,255));
vLastAlert = 2;
}
//}}EFSWizard_Action_2

//{{EFSWizard_Action_3
function onAction3() {
setPriceBarColor(Color.RGB(0,0,0));
vLastAlert = 3;
}
//}}EFSWizard_Action_3

//}}EFSWizard_Actions

//////////

/////////DisparityIndex/////////

var vMA = null;

function preMain() {
setPriceStudy(false);
setStudyTitle("Disparity");
setCursorLabelName("Disparity", 0);
setDefaultBarFgColor(Color.blue, 0);
setDefaultBarThickness(1,0);


var fp1 = new FunctionParameter("Length", FunctionParameter. NUMBER);
fp1.setLowerLimit(1);
fp1.setDefault(20); //Edit this value to set a new default

var fp2 = new FunctionParameter("Offset", FunctionParameter.NUMBER);
fp2.setDefault(0); //Edit this value to set a new default

var fp3 = new FunctionParameter("Source", FunctionParameter.STRING);
fp3.setName("Source");
fp3.addOption("Close");
fp3.addOption("High");
fp3.addOption("Low");
fp3.addOption("Open");
fp3.addOption("HL/2");
fp3.addOption("HLC/3");
fp3.addOption("OHLC/4");
fp3.setDefault("Close"); //Edit this value to set a new default

var fp4 = new FunctionParameter("Type", FunctionParameter.STRING);
fp4.setName("Type");
fp4.addOption("MAStudy.SIMPLE");
fp4.addOption("MAStudy.EXPONENTIAL");
fp4.addOption("MAStudy.WEIGHTED");
fp4.addOption("MAStudy.VOLUMEWEIGHTED");
fp4.setDefault("MAStudy.SIMPLE"); //Edit this value to set a new default


}

function main(Length,Offset,Source,Type) {

if (vMA == null) vMA = new MAStudy(Length, Offset, Source, eval(Type));

/*****************************************
Insert your code following this text block
Use vMA.getValue(MAStudy.MA) for your code
******************************************/

if(vMA.getValue(MAStudy.MA)==null)
return;

var vDiff = ((close()-vMA.getValue(MAStudy.MA))/vMA.getValue(MAStudy.MA))*100;
addBand(0,PS_SOLID,1,Color.black,2);

return vDiff;
}

OK excuse me writing again! I have found the disparity index file. I just need help with the divergence bar file to color the price bar when the following criteria is met:

if
high() > high(-1) &&
close() < open()
set price bar color to red
else if (
low() < low(-1) &&
close() > open()
set price bar color to blue

else color bar black