Optical and NIR CMDs, as shown in Fig. B.5. We fit a family of PARSEC isochrones: on the top panels, we keep fixed the metallicity ([Fe/H] = −0.5) and we change the age (Age = 2, 3, 5 Gyr), contrary in the middle panels, we keep fixed the Age = 3 Gyr, and we change the metallicity ([Fe/H] = −0.3,   − 0.5,   − 0.7), as also specified by the legend. In the bottom panels, we show deeper DECaPS+Gaia DR3 CMDs, where the top of the main sequence is reached at g ∼ 20.8, used to derive a robust age estimate. In this case, we fixed the [Fe/H] = − 0.5 and we change the age = 2, 3, 5, 8 Gyr.