Abundance distributions for the simulated stellar sample. PDFs for the chemical abundances used to sample the stellar properties in our dataset, with lighter colors indicating higher probability densities. Left panel: PDF of [C/Fe] versus [Fe/H]. Right panel: PDF of [α/Fe] vs. [Fe/H]. In both panels, the pink contours show the abundance distributions of halo stars from the APOGEE survey, as provided by the astroNN catalog. APOGEE does not reach the lowest metallicities present in our simulated dataset, which explains the differences at low [Fe/H].