HR diagram with selected models at 0.2 Z_⊙ metallicity (SMC-like). We compare models computed with increased resolution (various colors) to the standard models used in this work (in black). Diamonds mark the terminal-age MS, dots mark the position of the star taken every 50 000 years during its post-MS evolution, white crosses mark the end of core-helium burning, whereas red stars mark the end of central carbon burning.