Top: stellar density profile, as inferred in Sect. 2.5, of the galaxies in each of the three bins in (M_*,10, Γ_*,10) shown in Fig. 7. The red dashed line is the stellar density profile of a Sérsic profile with the same index n as the median among galaxies in the bin, and the same value of M_*,10 and Γ_*,10 as the centre of the bin. The inset shows the distribution in Sérsic index and half-light radius of each galaxy. Bottom: residual between the stellar mass density of each galaxy in the bin and that of the reference profile with the same M_*,10 and Γ_*,10 as the centre of the bin, divided by the latter.