Complementary plot to Fig. 3 showing the distribution of magnitudes from the main ridge line instead of the perpendicular distance in color and magnitude that is on Fig. 3. We show the position of the main ridge line (at 0.0) as well as unresolved equal-mass binaries and equal-mass triples stars, using vertical lines. The positions of the three peaks relative to the main ridge line and equal-mass binaries or triples is quantitatively comparable to the Fig. 3.