Interior parameters’ means (points) and standard deviations (error bars) within the four clusters, shown in different colors. Clusters 1 and 2 (red and blue) show high values of T_1bar and Z₁, while clusters 3 and 4 (green and yellow) show lower values of these parameters. Clusters 1 and 3 feature high values of m_dilute and r_core, and low values of Z_dilute, whereas clusters 2 and 4 display the opposite trend. We note that the compact core mass, M_core, was not used in the clustering analysis.