Selected evolutionary sequences of the secondary star in the ﹩\mathrm{log}\,g\mbox{--}{T}_{\mathrm{eff}}﹩ plane. The left and right panels correspond to the cases of no evaporation and Mode A evaporation with f = 0.1, respectively. The thick and thin lines represent the RLOF and RL-decouplement phases, respectively. The colors describe the magnitude of the central degeneracy parameter ﹩{\psi }_{{\rm{c}}}﹩ of the secondary star. The red star symbol on each sequence marks the Hubble time.