As Fig. 2, but for images of the luminosity weighted mean age, ⟨log age⟩_L (in yr). Radial age gradients are visible in galaxies in the green valley (−22 < M_r < −20 and 2 < u − r < 3.5), but not in the blue cloud or red sequence. CALIFA 853 (u − r = 4.02, M_r = −20.98) has ages similar to other galaxies of similar M_r, and its red color is mainly due to extinction (A_V(1HLR) = 1.2).