DSC Combmod classifications for the white dwarf class on the cleaned validation data set using the global prior. (a) DSC WDs predictions on the full sample. (b) DSC WDs predictions after the quality cut on Gaia data. Each panel shows, from left to right, the true positives (i.e. correct predictions), the stellar false negatives (i.e. sources from the white dwarf class classified as stars), and the stellar false positives (i.e. sources from the star class classified as white dwarfs). Faint sources G ≥ 18 (grey) and bright sources G < 18 (magenta) are plotted separately.