Corner plots of the posterior distributions of the FOPT onset density n_S, end density n_E, and central density n_c of the most massive neutron star for the two choices of the termination density n_L: n_L = 25 n₀ (left panel) and n_L = 12 n₀ (right panel). In each panel, the diagonal subpanels show the priors and one-dimensional marginalized posteriors, with the median and 68% credible interval reported in each panel title; the Bayes factors ﹩{{ \mathcal B }}_{{\rm{NPT}}}^{{\rm{FOPT}}}﹩ and ﹩{{ \mathcal B }}_{{\rm{in}}}^{{\rm{out}}}﹩ are also annotated. The off-diagonal panels display equally weighted posterior samples, with blue (n_S < n_c) and orange (n_S ≥ n_c) marking FOPT onsets below and above n_c, respectively.