Interesting change in Google's notification window

Now the secret seems to be lifted why it's no longer called "Google+ notifications" but "Google notifications".
I discovered the gear icon today (I don't know how log it's been sitting there). After a click you can choose what notifications you want to get.

Google+ and Google Photos are there at the moment. You can turn them on or off. Nice.
The "settings" link only bring you to the normal Google+ or Photo preferences.