I think adding something to modify the luminosity of a map, to make it darker (night), lighter (day), reder (sunset/rise) etc...would be great ! It would help the players (and GM) to get in the mood, in my opinion. (Maybe juste add a filter layer, with the basic colours, will do the trick.) (I'm not english, sorry if there's any.....how do we say when we torture a language ? "Orthograph mistake")
