Red is pink, Acer Nitro 5 notebook?

Dear forum members,

maybe someone has some advice here.

I have had a new notebook for some time, an Acer Nitro 5, so far everything is great, but for a few days I have been missing the color red.

Everything appears bright pink (strangely), but nothing is more red.

Now I've tried color calibration but that doesn't work either.

Since I played around with the colors a bit, I'm afraid that it will be a matter of setting, but I don't know how to reset the colors, all I can find on the web is resetting the entire system and I actually didn't want that.

Does somebody has any idea?

Thank you in advance!

PS: I'm more of a gory beginner regarding PC's.

Maybe the post mode has been activated?

https://www.heise.de/...18034.html

Otherwise, possibly (from a friend who has a bit of PC knowledge) have the graphics card driver uninstalled and download the driver for your model from the manufacturer and reinstall it.

Possibly also check this here
https://www.notebookcheck.com/...516.0.html

or here

https://de.answers.acer.com/app/answers/detail/a_id/18398/~/bildschirm-zeigt-falsche-farben-an

I'm a beginner, but I updated the graphics card driver myself yesterday.

Yes, the night mode is activated, but strangely enough, since I wrote this post yesterday, I've had red. So not red in pink but pure real red.