Opacity profiles for the model of 1.44 M_⊙ with Y_init = 0.297 and Z_init = 0.0305 with gravitational settling only (blue solid curve) and including radiative acceleration (green dashed curve). The light grey area represents the surface convective zone of the model when radiative accelerations are not included. The dark grey area represents the extension of this convective zone obtained when radiative accelerations are included in the computations.