Posterior distributions for the stellar-contamination parameters of LHS 1140 b from the ECLIPSE-Xλ fit with limb darkening included. The panels show the 1D and 2D marginals for the spot filling factor (f_spot), spot temperature (T_spot), facula filling factor (f_fac), facula temperature (T_fac), and photospheric temperature (T_phot). Diagonal panels display the 1D histograms with the median and 16th–84th percentile intervals marked by solid and dashed vertical lines, respectively. Off-diagonal panels show the corresponding 2D credible regions, with darker shades indicating higher posterior density. Numerical summaries of these posteriors are reported in Table 2.