That doesn't really work, because the border is needed to identify where you can't place any buildings. You'd probably end up with situations where people would try to place their TC (or even just a house etc.) in range of the enemy and it wouldn't work, providing basically the same information.Yellow border should only be visible after seeing the TC. Just make this change and we should be good to go. Sadly, i don't see the devs putting any effort to perfect this. If it works good in theory then all good, doesn't matter to the devs if it doesn't work in practice.