I think you're misunderstanding the markings.
Firstly, there aren't any regulations regarding off-street car parks, including how these should be marked, however, on-street markings may take the form of:
(3) The bay may be varied to contrast, in pattern or colour, from the surrounding parts of the road and any adjoining bays, in which case the marking may be omitted.
(4) The bay may be divided into individual spaces by—
(a)the application of a white line marking (either broken or continuous), with a minimum width of 50 mm; or
(b)contrasting pattern or colour.
My emphasis.
IMO, the bay is pristine in terms of its structure and markings, it's just that these are of the different pattern/colour/material variety.
Others may have different views.