Guys, I update saying that I succeeded by trying to install the files of the Night Mode found in a thread here (which I attached). It is the one for readers without a light button. I performed the instructions well by installing both the image and the tgz file. It goes great on my Aura 2 Edition with firmware 4.1.7729.I am very happy.I can use my Kobo with satisfaction. I was bad when I discovered that there is not the option of the black background.You are great.Forum wonderful. Compliments
https://www.mobileread.com/forums/sh...d.php?t=257246