void FillStyleIssue ()
{
  gStyle->SetLegendFont(42);
  gStyle->SetLegendBorderSize(0);
  gStyle->SetFillStyle(0);//is different for vers<=32 & vers>=34
  
   TF1 *f[6];
   for(int i=0; i<6; i++) {
     f[i] = new TF1(Form("f%d",i),"[0]+x",0,10);
     f[i]->SetParameter(0,i);
     f[i]->SetLineColor(i+1);
   }
   TCanvas *c1 = new TCanvas("c1","c1", 700,700);
   f[5]->Draw("");
   for(int i=0; i<5; i++) f[i]->Draw("same");
   TLegend *leg1 = new TLegend(0.14,0.59,0.42,0.91,"   1");
   TLegend *leg2 = new TLegend(0.42,0.59,0.70,0.91,"   2");
   leg1->AddEntry(f[2], "","l");
   leg1->AddEntry(f[1], "","l");
   leg1->AddEntry(f[0], "","l");
   leg1->Draw("");
   leg2->AddEntry(f[5], "","l");
   leg2->AddEntry(f[4], "","l");
   leg2->AddEntry(f[3], "","l");
   leg2->Draw("");
 }