Diagrams of the differences between two estimators of the mean found in the Gaia archive (mean_mag_g_fov in the vari_summary table and phot_g_mean_mag in the gaia_source table). The weighted mean on fluxes versus the unweighted mean on FoV magnitudes. The colour scale is the range of the magnitude distribution, and is therefore given as a function of the signal amplitude. Top left panel: Long-period variables. Top right: Cepheids. Bottom left: RR Lyrae stars. Bottom right: Eclipsing binaries.