T–P profile for the envelope (colors) and interior (dotted, gray) across all conditions in the grid, compared to the coexistence curves (median is black dashed, and 95% C.I. shown as gray shading), for different envelope metallicities (labeled for each panel). The color shadings encode the planet mass for the three temperatures explored in the grid (shades of blue for T_eq = 381 K, green for T_eq = 361 K, red for T_eq = 336 K). The vertical and horizontal span in T–P space is kept constant throughout all panels to illustrate the compositional dependence of the demixing window.