Elemental abundance distribution of the sample in the [X/Fe]–[Fe/H] plane. Only stars with S/N_r > 100 are shown. The sample is separated into two temperature bins: T_eff < 10 000 K (left) and T_eff > 10 000 K (right). Coloured circles (with error bars where available) represent literature results from high-resolution spectroscopy used in Sect. 4.1, following the same colour scheme as Fig. 4. Grey dots represent the reference pattern of Classical Cepheids from Trentin et al. (2024).