Constraints on S₈ and A_IA for colour-based splits of the catalogue. Left panel: Red-blue split defined via a cut on the spectral type of T_B = 3.0. Right panel: Red-blue split defined via a cut on the spectral type of T_B = 1.9. For this threshold, the catalogue only contains very few red galaxies with z_B > 1.14. Therefore, the red galaxy sample only encompasses the first five tomographic bins. The inner and outer contours of the marginalised posteriors correspond to the 68% and 95% credible intervals, respectively.