Photometric offset estimated from the metallicity-dependent stellar locus for the 30 J-PLUS DR2 pointings with lower (red histogram) and larger (blue histogram) absolute Galactic latitude. Top panel: initial offsets with the homogenization from ISL, Δu_FeH. Bottom panel: final offsets with the homogenization from ISL + ZSL, . The difference between the median offsets of each population is marked as s_ISL = 65 mmag and s_{ISL + ZSL} ∼ 0, respectively. The solid lines show Gaussian distributions located at the median offsets and with dispersion mmag in all cases, i.e., they are not a fit to the data.