Nodes apply their transform on top of their parent's transform.
So for example, if
Camera's position is (10, 20), and
North's position is (5, 5), then
North's global position would be (15, 25). In this case,
North would be offset from
Camera by (5, 5).
In your case, if
Camera's global position is (256, 0), then each of the
Position2D nodes would have an inherited global position of (256, 0) if their positions were (0, 0).