Gas mass fraction (top left panel), water fraction (top right panel), mantle mass fraction (bottom left panel), and core mass fraction (bottom right panel) for the five planets orbiting HD 23472. The green triangle represents the distribution mean, the orange line represents the distribution median, the red star represents the distribution mode, and the box represents the 25 and 75 percentiles. The opacity of the black line (outside the boxes) is proportional to the posterior distribution (normalised to the mode).