How to fill the area under the TF1 fitted curve?

ROOT
1

Hello everyone,

I want to highlight certain region under the TF1 fitted curve.

The image below summarizes my question. The green area is from the first Gaussian-like fitted curve. The brown area is from the second Gaussian fit. So, how to fill color only in the region of interest?

area
area1920×1080 187 KB

ROOT Version: 6.24/08

Best,
Divyang.

2

Which is what ?

3

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