FN dependences. TPs (green lines) and FNs (blue lines) distributions as a function of source redshift (z_src, top panel), Einstein radius (θ_E, middle panel), and source intrinsic F814W magnitude (bottom panel) for the VGG (dashed lines) and SC-VGG (solid lines) models. The corresponding FN ratio is plotted at the bottom of each panel. In all panels, only sources with available and reliable magnitudes are plotted.