Nucleus contrast as a function of galaxy stellar mass. The violet dots show the nucleated galaxies, whereas the green circles and crosses denote the non-nucleated galaxies with ΔBIC > 0 and ΔBIC < 0, respectively. The newly identified nucleated galaxies possess both the ΔBIC > 0 and nucleated symbols. For comparison, the solid lines show the moving averages for the nucleated and ΔBIC > 0 sub-samples. Those with nucleus contrast below 10⁻³ are shown as triangles along the x-axis.