These settings are by Alex Schmah:

// **************************** Set graphic style***************************************
   gStyle->SetPalette(1);
   gStyle->SetCanvasColor(10);
   gStyle->SetFrameFillColor(10);
   //gStyle->SetFillColor(4);
   TGaxis::SetMaxDigits(4);
   gStyle->SetPadTopMargin(0.15);
   gStyle->SetPadBottomMargin(0.15);
   gStyle->SetPadRightMargin(0.10);
   gStyle->SetPadLeftMargin(0.15);
   gStyle->SetLabelSize(0.05,"X");
   gStyle->SetLabelSize(0.05,"Y");
   gStyle->SetTitleSize(0.05,"X");
   gStyle->SetTitleSize(0.05,"Y");

   const Int_t NRGBs = 5;
   const Int_t NCont = 255;
   Double_t stops[NRGBs] = { 0.00, 0.34, 0.61, 0.84, 1.00 };
   Double_t reds[NRGBs]   = { 0.00, 0.00, 0.87, 1.00, 0.51 };
   Double_t greens[NRGBs] = { 0.00, 0.81, 1.00, 0.20, 0.00 };
   Double_t blues[NRGBs]  = { 0.51, 1.00, 0.12, 0.00, 0.00 };
   Int_t  FI = TColor::CreateGradientColorTable(NRGBs, stops,reds,greens, blues, NCont);
   gStyle->SetNumberContours(NCont);
   // **************************************************************************************