Two-color diagram of the stars observed in F5W (gray dots) compared to the expected colors for stars of different type: dwarfs from the TRILEGAL simulations (cyan dots), M giants from Fluks et al. (1994) empirical data (large red triangles), and carbon stars (green pentagons) from Bergeat et al. (2001). The circled dots are stars with different I magnitude, as labeled and also indicated in Fig. B.2. Sources that are further highlighted with magenta stars are observed NGC 5128 AGB giants with magnitudes brighter than TRGB.