Left: reproduction of the m_F814W versus m_F606W − m_F814W CMD from Fig. 1. The regions used to derive the luminosity and MFs are over-plotted, with the corresponding average stellar masses indicated on the right-hand side of each region. Right: luminosity function (top) and MF (bottom) derived from the CMD in the left panel. The straight lines show the best-fitting relations for stars in the mass intervals defined by Cordoni et al. (2023).