Comparison between light-weighted [Mg/Fe], metallicity, and age of the stellar populations in the bar of NGC 4643. Each point corresponds to one Voronoi bin as shown in Fig. 5. Bins are coloured by their distance to the bar major axis and only bins within the bar are shown. Bins within the nuclear structure are marked with different symbols and in light blue. These plots are shown for all galaxies in Figs. A.1 and A.2.