IA signal of the source galaxy sample around the LRGs, selected in narrow bins in photo-z (Δz_phot ≡ |z_l − z_s|< 0.06). We consider the signal from the full source sample (black squares), and its split in red/blue (red circles/blue triangles). At separations below 0.06 h⁻¹ Mpc (grey region) blending becomes important and thus we do not consider it in the analysis. For clarity, the red and blue points are shifted horizontally.