Contamination of photometric OBe stars (‘phot OBe’; as identified by the color cuts in Figs. 2 and A.2). Top panels: Number distributions of absolute magnitude M_Gbp for various types of sources. The green line shows photometric OBe stars. The orange and blue lines show photometric OBe stars that are known to instead be B[e] and Wolf-Rayet (WR) stars, respectively, and that are in the SMC and LMC spectral type catalogs of Bonanos et al. (2009, 2010). Bottom panels: Fraction of all photometric OBe stars that are known to be WR stars or B[e] stars instead, in different absolute magnitude intervals.