Photometric quantities obtained by simulating the cSED galaxy model in Fig. 7 in the redshift interval 0 ≤ z ≤ 3. Our synthetic galaxy consists of a bulge and a disk that have been forming for 13.7 Gyr according to, respectively, the τ1 and contSF SFH model. Single-age simulations based on the SED of a 13.7 Gyr old galaxy at z = 0 that is projected out to z = 3 are shown with dotted curves, whereas solid curves refer to EvCon simulations (Sect. 2.3). Thick curves show the true (rest-frame) values implied by EvCon models in V (green) and H (gray). a: concentration index after Eq. (1) ranging between 0 (pure disk) and > 0.54 (bulge-dominated galaxy). b: reduced effective radius (i.e., with the dependence of angular distance on z not taken into account). c: ratio between effective and Petrosian radius. d: Sérsic exponent, η. e and f: logarithm of the B/D and B/T luminosity ratios.