TCanvas *c1 = new TCanvas("c1","TCandle Scaled",800,600);
c1->Divide(2,2);
TH2I *h1 = new TH2I("h1","GausXY",20,-5,5,100,-5,5);
TH2I *h3 = new TH2I("h3","GausXY",100,-5,5,20,-5,5);

for (int j = 0; j < 100000; j++) {
   auto myRand1 = gRandom->Gaus(0,1);
   auto myRand2 = gRandom->Gaus(0,1);
   h1->Fill(myRand1, myRand2);
   h3->Fill(myRand1, myRand2);
}

c1->cd(1);

TCandle::SetScaledCandle(true); /* This is a global option for all existing candles, default is false */

h1->SetTitle("CandleX scaled");
h1->DrawCopy("candleX2");
c1->cd(2);

h3->SetTitle("CandleY scaled");
h3->DrawCopy("candleY2");

TCandle::SetScaledViolin(false); /* This is a global option for all existing violin, default is true */
TH2I *h2 = (TH2I*)h1->Clone();
h2->SetFillStyle(0);
h2->SetFillColor(kGray+2);
h2->SetLineColor(kBlue);
TH2I *h4 = (TH2I*)h3->Clone();
h4->SetFillStyle(0);
h4->SetFillColor(kGray+2);
h4->SetLineColor(kBlue);

c1->cd(3);
h2->SetTitle("ViolinX unscaled");
h2->DrawCopy("ViolinX");
c1->cd(4);
h4->SetTitle("ViolinY unscaled");
h4->DrawCopy("ViolinY");

gROOT->GetListOfCanvases()->Draw()