The easiest way for me to tell Light/Darkness, is to have my characters go into stealth. Where you normally see the character's buffs on the main screen, they will display Sun/Shroud symbols, this is what they look like (I took three screenshots and cropped it):
[Linked Image from i.ibb.co]

Basically if you see a full sun, anyone can spot you.
If you see a half sun, creatures with Dark Vision can spot you
If you see the Cowl/Fully Shrouded symbol, it means you're Heavily Obscured you can achieve that by using things like Fog or Darkness.

If you're having trouble seeing, try casting light on one of your characters.

Last edited by Lillith; 07/02/24 12:30 PM.