Customizing the iOS permission dialog for push notifications
No, this is a system dialog which cannot be customized.
One workaround that I have seen involves an app bringing up its own custom dialog explaining why it needs a permission. Then immediately afterwards the app requests the permission, bringing up the system dialog.
This may be suitable for convincing a user to accept the permission request in order to gain access to a feature, or to reject the request with the knowledge that the feature will not be available.
Not possible, since you dont have any control on it whatsoever