UILocalNotification Minimal Actions – One Blue, One Clear? - ios

Question

I’m screwing around with UILocalNotification and notification actions – all working as I’d expect, except that when I provide the two Minimal actions in my category, when revealing the actions via a swipe in the Notification Center, the right-most action is always blue.
Since the actions in my app are equal, I’d rather them both be the clear grey colour, rather than one blue, one clear. I know that I can make them both red with destructive, but that’s wrong too, and if I explicitly set destructive to false, I still get one blue, one clear.
Here’s an image showing what I’m talking about:
And here’s the code I used to make it:
let note = UILocalNotification()
note.fireDate = NSDate(timeIntervalSinceNow: 5)
note.timeZone = NSTimeZone.defaultTimeZone()
note.alertBody = "Actions: A and B"
note.alertTitle = "Notification!"
let action1 = UIMutableUserNotificationAction()
action1.identifier = “ACTION_A"
action1.title = "A"
action1.activationMode = .Background
let action2 = UIMutableUserNotificationAction()
action2.identifier = “ACTION_B"
action2.title = "B"
action2.activationMode = .Background
let category = UIMutableUserNotificationCategory()
category.identifier = "ANSWERS_CATEGORY"
category.setActions([action1, action2], forContext: .Default)
note.category = “ACTIONS_CATEGORY"
let categories = Set(arrayLiteral: category)
let settingsRequest = UIUserNotificationSettings(forTypes: [.Alert, .Sound, .Badge], categories: categories)
UIApplication.sharedApplication().registerUserNotificationSettings(settingsRequest)
UIApplication.sharedApplication().scheduleLocalNotification(note)

Answer 1

Both the HiG and the notification programming guide do not suggest that is possible to set the buttons' background colour. The most specific reference I found is in the latter, that states:
If the destructive property is NO, the action’s button appears blue; if it’s YES, the button is red.
This is obviously not precise, since two non-destructive actions are not both blue, but it implicitly suggests that the colour for each is automatically set by iOS