The distribution of stars in the MSTO region of the Fornax dSph, for different elliptical radii. Three isochrones are overlaid, representative of the metal-rich ([Fe/H]  = −1.00 dex, [α/Fe]  = 0.00 dex, age = 4 Gyr, red) and metal-poor populations ([Fe/H]  = −2.45 dex, [α/Fe]  = 0.40 dex, age = 14 Gyr, blue) on the RGB, as well as the young population of the Fornax dSph ([Fe/H]  = −0.30 dex, [α/Fe]  = −0.20 dex, age = 0.3 Gyr, green dotted).