Has anyone else noticed that when you make a tile "active" (by clicking on or in it) you can hardly tell which tile is the active one?
Yes, there is a very, very slight shadow or outline around whichever tile is active. But I can barely see it, and it's very hard to see at just a glance.
You should be able to tell which tile is active just at a glance. It should be much easier to see.
I would like to suggest that there be more contrast or a different color or something to make it more obvious which tile is active, because the way it is now it's not easy to tell.