I found after playing around with this build a while, I had significant eye strain.  Part of that, I think, is due to insufficient contrast between elements on the screen -- bits of gray on swaths of beige.

So,

1) If you expect people to spend a lot of time with cloth maps in the later stages of game, you might want to address this problem for the default view.

2) An easy way for users to customize the look and feel of the map would be a welcome feature to people like me.

In general, I think the map is great.  When I saw the way it worked in concert with the more detailed view at PAX, I was very happy with it.  I just find that my eyes get a bit starved for color after a while.