* Priority to reorganize (recreate) the vector ordering. * Priority can be any value. * Lowest priority will be drawn below, and higher ones above. * * The suggestion is to skip by 100 every new layer, so if there are too many they can * fit in between w/o having to change everywhere ex.: * 900 : some new layer below Map * 1000 : Map * 1100 : Some other new layer above Map * many