rootlogon.C

// This is the file rootlogon.C
{
  printf("\n Beginning new ROOT session\n");

  TStyle *myStyle  = new TStyle("MyStyle","My Root Styles");

  // from ROOT plain style
  myStyle->SetCanvasBorderMode(0);
  myStyle->SetPadBorderMode(0);
  myStyle->SetPadColor(0);
  myStyle->SetCanvasColor(0);
  myStyle->SetTitleColor(1);
  myStyle->SetStatColor(0);

  myStyle->SetLabelSize(0.03,"xyz"); // size of axis values

  // default canvas positioning
  myStyle->SetCanvasDefX(900);
  myStyle->SetCanvasDefY(20);
  myStyle->SetCanvasDefH(550);
  myStyle->SetCanvasDefW(540);

  myStyle->SetPadBottomMargin(0.1);
  myStyle->SetPadTopMargin(0.1);
  myStyle->SetPadLeftMargin(0.1);
  myStyle->SetPadRightMargin(0.1);


  myStyle->SetPadTickX(1);
  myStyle->SetPadTickY(1);

  myStyle->SetFrameBorderMode(0);

  myStyle->SetOptStat(111111);
  myStyle->SetMarkerStyle(21);
  myStyle->SetMarkerSize(0.6);
  myStyle->SetMarkerColor(kBlue);

  gROOT->SetStyle("MyStyle");
  gROOT->ForceStyle("MyStyle");
}