CaN ANYBODY TELL ME WHICH INDICATORS ARE THESE?

Hi, I am new here, learning technical indicator for couple of weeks but I can't figure out which technical indicators are these in crude oil intraday chart, here take a look, here is the website link

here is the actual image of that site


......specially the indicator which is beneath the candle stick, yes that one with purple and green dots making a line,

......specially the indicator which is beneath the candle stick, yes that one with purple and green dots making a line,

_SECTION_BEGIN("BB-MACD");
//--Created by KelvinHand


iMACD=Null; iMidBB=Null;

SetChartBkGradientFill( ParamColor("BgTop", colorBlack),ParamColor("BgBottom", colorBlack), colorLightGrey);

MACDMethod = ParamList("MACD.Mode", "SMA|EMA", 1);

r1 = Param("Macd.FastPeriod", 12);
r2 = Param("Macd.SlowPeriod", 26);

BBMethod = ParamList("BB.Mode", "SMA|EMA");

r3 = Param("BB.Period", 10);
r4 = Param("BB.StdDev", 1.0, 1,10, 0.1);

ShowMACDLine = ParamToggle("Show MACD Line?", "No|Yes");
ShowMidBB= ParamToggle("Show Mid BB?", "No|Yes", 1);
ShowOuterBB = ParamToggle("Show Upr/Lwr BB ?", "No|Yes", 1);
sShapeBtwBB = ParamList("Shape Inside BB", "Small|Big", 1);


cMacdLine=ParamColor("MACD Line", colorOrange);
cUprBB = ParamColor("BB.Upper", colorBlueGrey);
cLwrBB = ParamColor("BB.Lower", colorBlueGrey);

cMacdGeUprBB = ParamColor("Macd>=UprBB", colorBrightGreen);
cMacdLeLwrBB = ParamColor("Macd<=LwrBB", ColorRGB(255,0,255));

cMacdLtUprBB = ParamColor("Macd<=UprBB", colorRed);
cMacdGtLwrBB = ParamColor("Macd>=LwrBB", colorDarkGreen);

cZLUp = ParamColor("Macd>0-Line", ColorRGB(0,0,140));
cZLDn = ParamColor("Macd<0-Line", ColorRGB(130,0,0));

if (MACDMethod=="EMA")
iMACD= EMA(C,r1)-EMA(C,r2);
else
iMACD= MA(C,r1)- MA(C,r2);


m1 = Ref(iMACD, -1);

if (BBMethod=="EMA")
iMidBB = EMA(iMACD,r3);
else
iMidBB = MA(iMACD,r3);


SD = StDev( iMACD, r3);

BBtop= iMidBB + r4*sD;
BBbot= iMidBB - r4*sD;


if (ShowMACDLine) Plot(iMACD,"",cMacdLine);



ThisColor = IIf(iMACD>=BBtop AND iMACD>=m1, cMacdGeUprBB,
IIf(iMACD<=BBbot AND iMACD<=m1, cMacdLeLwrBB,
IIf(iMACD>iMidBB, cMacdLtUprBB, cMacdGtLwrBB)));

Plot(iMACD,"MACD", ThisColor,styleDots|styleNoLine);

if (sShapeBtwBB=="Big")
{
ThisShape = IIf(iMACD>BBtop, shapeNone,
IIf(iMACD<BBbot, shapeNone,
shapeSmallCircle));

PlotShapes( ThisShape, ThisColor,0,Null, 0 );
}




if (ShowMidBB)
Plot(iMidBB,"MidBB", colorDarkGrey, styleDashed|styleNoLabel);

if (ShowOuterBB)
{
Plot(BBtop,"UprBB",cUprBB, styleNoLabel);
Plot(BBbot,"LwrBB",cLwrBB, styleNoLabel);
}



Plot(0,"", IIf(iMACD>=0, cZLUp, cZLDn), styleNoLabel);


RequestTimedRefresh( 0 );

_SECTION_END();