ffa_hills minor graphic issue

[Phelanpt]

There is an empty area on the top left that doesn't exist on the top right, leading people to think they can cross through there.
Granted, they only make the mistake once, but it still seems counterintuitive not to have a wall all the way up like on the right.

And, since this is my first post, I would just like to say thank you for this great game! I played a lot of triplane turmoil, but never found out about altitude until this year's IGF. Glad you submitted it!