I am modding something, and came into a problem. I realized that I needed a way to darken the screen on demand, and then let it return to normal, problem is I have absolutely no clue whatsoever as to how to do that. Any suggestions?

Fiddle with brightness settings on the monitor. Problem Solved.

Lol, I was thinking more of like glows that could last a long time.
But hey,....

Hey

Ho, stop screwing around - Seraph

dark glow the size of your screen as an emission linked to a key? <- need lua

And as I am near lua illiterate, would you be so kind as to write that script for me quickly?
I can make a large black square though
EDIT: though I doubt it's possible, fading in and out would be nice too.
While this is very important.

Ummmmm... Quickly does not coincide with lua... Put it in the requests exactly what you want (be sure to include weather this is for a HDfirearm or Actor or something else