Sometimes your players can't see because they are deep in a dungeon, and all light is gone. In these situations, dynamic lighting at present really shines and is amazing. But sometimes, the same tool could be used for a very different mechanic with the only difference being the color of the fade for the dynamic lighting. For example if the fade to black were replaced with: Yellow/Tan - Sandstorm mechanic. You cant see more than X feet due to a dust storm. White/gray - Mist/Fog. Your vision fades to white as the thick clouds settle around you. Green/Purple - Radiation/Miasma - etc etc. I'm not sure how difficult setting this up would be, but a color choice option akin to the Page Background options on a map would be amazingly cool for a lot of variations in gameplay. That way regardless of what type of visual blockage you have, you can set the party to use it a bit better. Combine this with some of the suggested fog of war/dynamic lighting connection tools and you literally could have fog of war, rather than darkness. A nice alternative!
