Line width of Fit function

ROOT
1

I am fitting a histogram to an exponential function, the line width of the fitted function is a little big and I would like to make it smaller, is there any way I can implement this in the code.
I attach the root macro and the root file.
histograms_as_or.root (220 KB)
Temp.C (1.3 KB)

2

At the beginning of your script replace

gStyle->SetLineWidth(1);by

Rene