Played a little with
forest terrain, so pay attention please. Also it is still early morning, so while it's not totally dark, it's not brightly lit either.
Dark green squares have shadowy illumination. Meaning everyone in these squares have concealment 20%. Characters with
Low-Light Vision can see normally.
Light green, everyone can see and move normally. There is a small fire in the middle of the area (I'm lazy to draw it, but it's there).
Middle green, light undergrowth, cost 2 movement and easier to hide in (see forest terrain link above). Also shadowy illumination, so total concealment 40%. 20% for those with LLV.
Light brown, small trees. Can move through and use them for AC bonus. See forest terrain for details.
Dark brown, large trees. Can't move through, but provide cover if you are behind them.
Greenish brown, fallen logs. Provide cover like low walls. Climb check to get on top. Balance check to move.
Blue, forest stream. Cost 2 movement to cross or Jump to not get wet.
Orange is the tent. Normal movement.
?? is the enemy, now Large sized.