The shade of bleen that the 57-rego Lowlanders had looks particularly awful. Makes me want to throw up just looking at pictures of them on Flickr.
Looks like 7501-13 also used that same shade when they were new, but 7514-21 used a much less eye-straining shade of blue when they were delivered (which 7511-3 also received when they were refurbished to MAX spec).
RE: Arriva North East: New buses 2022