public Bitmap getLargeIcon() {
            return mLargeIcon;
        }
Gets the large icon used in this car notification, or null if no icon has been set.

@return The large icon for the car notification.
@see CarExtender#setLargeIcon
android/android_framework/base/src/main/java/github/tornaco/android/thanos/core/compat/NotificationCompat.java