Time evolution of light and mass representations of the SFH, as derived from the starlight fits. The discrete x_tZxy and population vectors involved in these curves were smoothed in log t, marginalized in Z, and integrated over the spatial regions indicated. Dotted grey lines indicate the nucleus (central pixel). Green, red, and blue lines correspond to R ≤ 0.5 HLR, R ≤ 1 HLR, and R > 1 HLR regions, respectively. The black line represents the whole galaxy evolution as reconstructed from the sum of its parts, while (as in Fig. 10) the magenta dashed line is used to represent the results obtained for the spatially integrated spectrum.