HESS diagram of the bulge b249 field statistically decontaminated from the foreground disk population. Solid black contours are isodensity curves spaced by 1% and 5%, and then from 1/12 to 11/12 of the maximum density in steps of 1/6. Also plotted are BaSTI isochrones for ages (bluest to reddest) 5, 7.5, 10, and 11 Gyr, following the metal-poor regime from GIBS for the oldest (gray lines), and metal-rich for all others (dotted line). The isochrones have been shifted so that their RC and RGB roughly match the observed ones.