Nicolas immediately figure it out, new look of our new buttons after the first rejection of the application by Apple.
To recall, these buttons are used to adjust the amount of room that you wish to book for a hotel (most often : only one).
Goodbye AddContact button from Apple. Goodbye blue background, welcome to the green one, same color as the bottom big Reservation / Total button. And for the shape : a square with rounded edges instead of disk. Finally, the “effect” : inset in place of drop shadow.
Before/after compared :

And you, what is your opinion on this makeover ?