Feathering line of sight.
I know this is nit-picky, but would it be hard to make an option for the line of sight for walls to rapidly fade-out the background image rather than cut it off in an abrupt line? (eg, fade the background image between 10 and 2 feet of grid line dimension)
Why I think this would be helpful is it would show the walls themselves if you're trying to section off a thin wall with players on both sides, or help show the hint of a further passage if the players are climbing levels in a tunnel system etc.
I'd be interested in your thoughts.
Cheers,
DM de Brus.