I've yet to come to a conclusion of what each special colored star can stand for as

In the First Photo You'll see a Pink Star which is directly to the left of my character's head this star has bothered me since patch 1.22a which is when I first noticed it.

In the Second Photo above my character's head is a Blue Star I've only recently discovered this star and the next one's which will be displayed.


In the Third Photo You can see a Yellow Star Adjacent to another star which seems right for one of the Espers as I remember one had a brother in the storys of FF.

There is also and Orange ,Green and Blue I've had the photo's of them but I wiped my Harddrive if anyone can spot these out please post a picture here. The time of In-Game month effects how the skydome appears to us to if you cannot find these you might have to wait awhile.But of course these star may mean jack squat XD