Stego > WideScreen [HTB]

HTB site > Challenges > Stego ---> WideScreen by Arrexel
https://www.hackthebox.eu/home/challenges/Stego

Download widescreen.zip    Extract it. 
Password is hackthebox



Open widescreen.png

You can see low opacity some word

Brightness change using Picture Editor we can see following 












Hidden text is HTB{c3r34l_k1ll3r}
that is Flag my Friend