The + sign and nav buttons are "tinted" as red, as are the rest of the app's functions. When overlay UI appears, such color tints become grey. That's consistent throughout Apple's apps -- every app has a colour to tint with.
The green circles shown are the inconsistent buttons. They're trying to do too much, both compensating for the choice of red and encouraging you to click them. Their thick circle borders are redundant, and the lack of consistency on these custom buttons is indeed an issue.
The calendar is probably set to a different language/country's date formatting. That's a feature and is observable in other OSes. (English menu, arabic dates, for example)
The unique bit about alarms -- for iPad only -- is that table representation. They should have cut it out until the next iOS revision.
The green circles shown are the inconsistent buttons. They're trying to do too much, both compensating for the choice of red and encouraging you to click them. Their thick circle borders are redundant, and the lack of consistency on these custom buttons is indeed an issue.
The calendar is probably set to a different language/country's date formatting. That's a feature and is observable in other OSes. (English menu, arabic dates, for example)
The unique bit about alarms -- for iPad only -- is that table representation. They should have cut it out until the next iOS revision.