Illustration of a mass bin definition (z_obs = 0.49, 10.73 ≤ log (M/M_⊙) < 11.13): thick magenta solid lines represent the loci of constant mass M used in this study (the mass evolved to z = 0), thick blue dashed lines the loci of constant mass M_zobs in stars at z_obs, and gray shaded areas represent the difference between those two definitions. The horizontal dotted line represents the threshold used to define blue/red galaxies.