CLV of continuum intensity contrast, C_IC over eight ⟨B_l⟩/μ intervals. The filled circles and error bars represent the mean and standard deviation of C_IC grouped by μ in bins 0.05 wide. The red curves are third-order polynomial fits to the filled circles and the blue curves are the cross-sections of the surface fit to C_IC at the mean ⟨B_l⟩/μ within each interval (largely hidden due to the close agreement), extrapolated to μ = 0 (dotted segments). The horizontal dashed lines denote the mean quiet Sun level.