Color histograms, corrected for background counts, for three radial regimes and for different magnitude ranges. Left panel: 0–10 arcmin, middle panel: 4–10 arcmin, right panel: 2–4 arcmin. The upper row displays magnitudes brighter than R = 22, the middle row objects brighter than R = 23, the lower row objects brighter than R = 24. The respective backgrounds are indicated by the dotted histograms. The vertical dashed line indicates the color of NGC 1316 at 2′, outside the dusty region.