Panel a) shows the temperature structure of several standard model atmospheres. represents a model with an enhanced temperature structure of the original FALF model. In panel b) we show the center to limb variation of the “limb darkening function”, I_c(μ)/I_c(μ = 1), where I_c(μ) is the continuum intensity near the Cr i triplet. Panel c) shows the CLV of the continuum intensity for all wavelengths covering the violet to the IR regions of the spectrum. The observed data are taken from Neckel & Labs  (1994).