She actually had changed the entire a few times. Making everyone into someone else was not so much novel for her. World of only male or female, swapped gender role, succubi, android, fantasy setting... she already experienced many different mankind's world.
So today, she wanted to try more than so called mankind, and she decided to make every single person into another animal. Before make the Flash, she made her decision hoe the world would be. All human beings are going to swap there species into others animals. Although even they are not anthro, all society of humans will appear similar in animals' world, but mor animal-friendly.
Which animal they will become is random. But she didn't want to let her fate on luck. So she will make herself into something she liked to be...
FLASH