...By default, the .info style will be applied to the banner if no style is provided in the init method. You can set the background color of a banner at any time by simply setting the background color. By default, each notification banner is placed onto a singleton of an auto-managed NotificationBannerQueue. This allows an infinite amount of banners to be displayed without one hiding the other. If you have multiple controllers within your navigation stack that need to be managed by a separate queue (like a tab bar controller), simply create an instance of a NotificationBannerQueue and pass it into the show function.