[quote=@Darlit Glitch]
<Snipped quote by Dynamics>

Ahhhh.
How dark does it need to be for that to happen?
[/quote]

Depends on how much I concentrate. I can see it in light shadows if I look hard enough, and the darker it gets, the more obvious it is for me to see it whether I want to or not. But most of the time, I don't notice it at all because it's something I've always lived with and just filter out.