Comparison of KiDS r-band to Gaia G-band photometry as function of position on the sky. The per-tile median photometric offset (r_GAaP − G) is indicated by the colour scale, while the marker size corresponds to the mean seeing in the KiDS r-band image. Top: comparison for KiDS-North, with in the top and bottom subpanels showing the offsets before and after applying the photometric homogenization, respectively. Bottom: same as the top panel, but now for KiDS-South.