Isochrone fit to the identified cluster members in two different Gaia colors. The PARSEC isochrone G-band magnitude is adjusted for the parallax ϖ and extinction A_G using Eq. (2). The PARSEC G_BP − G_RP color is reddened by E(G_BP − G_RP) from Eq. (1). The dashed line indicates the nominal position of the equal-mass binary sequence (main sequence stars only). An alternative version using B − V and V − K is shown in Fig. C.1.