Theoretical isochrone of log (t_yr) = 8.2,9.1, and 10.0 with Z = 0.008 (upper) and Z = 0.019 (lower) (Marigo et al. 2008) on the near-infrared (J − K_s,K_s) CMD of NGC 205. The different isochrone colors show different evolutionary states. The green line corresponds to pre-TP-AGB stars, and the blue and orange lines represent M-giant stars and C stars, respectively. The different dust obscuration models are represented by different line types; continuous lines for the no-dust, dot-dashed lines for Bressan et al. (1998), and dashed lines for Groenewegen (2006) (the 0.85 AMC  +  0.15 SiC mixture for C stars, and 0.6 silicate  +  0.4 AlOx mixture for M-giant stars). The Galactic foreground stars with blue dots and the AGB star (green: M-giants, and red: C stars) dots are divided at (J − K_s) = 0.97. The yellow plus and open circle symbols are the same as those in Fig. 3.