Selected line core intensity (open circles and dotted curves) and corresponding residual intensity (filled circles and solid curves) contrast CLV (left) and contrast versus ⟨B_l⟩/μ (right) profiles. The circles represent the mean of measured contrast binned as in Figs. 8 and 10 and the curves the corresponding cubic polynomial fits. The selected profiles correspond to quiet Sun network (top left), active region faculae (bottom left), disc centre (top right) and near limb (bottom right).