Abundance trends for mh_gspspec (top) and alphafe_gspspec (bottom) as a function of teff_gspspec (left column), logg_gspspec (middle column), and phot_g_mean_mag (right column) for the stellar members of NGC 7789. The symbols are colour-coded as a function of logchisq_gspspec. Circles indicate the uncorrected alphafe_gspspec values, and crosses represent the calibrated mh_gspspec and alphafe_gspspec values. The parameters have been filtered with flags_gspspec[1:7,9:13] = 0 and flags_gspspec[8]< = 2.