This is the figure that collects all results. All data here are extinction corrected. The black dots refer to annuli from #1 to #5, the red dot is the Main annulus. Upper panels are SBF color vs. color (left) and SBF magnitude vs. color plots. Lower four  panels show the radial profiles for SBF-color, SBF-magnitudes, and J-H color. Basically, except for annulus #5 -which should probably be rejected- the radial color, radial SBF and radial SBF-color profiles are flat.