Diagnostic CMD-fitting results for the Sextans dSph for one of the bootstrapping realizations. The top left panel shows the luminosity distribution (g₀), comparing the observed data (red) and synthetic model (blue). The top right panel displays the significance of the residuals, defined as ﹩({\rm{o}}{\rm{b}}{\rm{s}}{\rm{e}}{\rm{r}}{\rm{v}}{\rm{e}}{\rm{d}}-{\rm{m}}{\rm{o}}{\rm{d}}{\rm{e}}{\rm{l}})/\sqrt{{\rm{m}}{\rm{o}}{\rm{d}}{\rm{e}}{\rm{l}}}﹩. The bottom panels provide the residuals distribution (left) and the color distribution (g − r)₀ (right) comparing the data (red) and model (blue).