Mass distribution of the three components H/He (yellow), water, and rocks (gray) for the 11 series A − K described in Table 1. Each panel shows various models running vertically, which differ in transition pressure P_1 − 2 in the case of 3L models, and in envelope water mass fraction Z₁ for 2L models (series C, F, and I). Thick black lines show layer boundaries, and numbers close to filled black circles denote temperature in K and pressure in Mbar. Water is subdivided into five colors coding fluid molecular and fluid dissociated water (green), plasma (red), superionic water (blue), an undissolved region in the water phase diagram close to the superionic phase (violet), and fluid dissociated water (orange) in series C, F, and G. In series C, F and I, the H/He mass fraction can be obtained via (1 − Z₁) × (1 − M_core/M_p). In series G, the center of the planet is at the top of the figure while for all other series, the center is at the bottom.