Frogs are sorted in the order they entered your habitat. By ‘enter’ I mean they were created in the nursery or you took them out of the mailbox. If you want the order above, you have to breed the maroon frog, then the red, then the tangelo, and so on. It’s not impossible but tedious.

Alternative solution: You can clone the frogs from your froggydex and take them out of the mailbox in the order you want them to be. Less time consuming, but more expensive.

Ahhh 😅

Thanks, now I got it.