Comparison between the residuals (model-data) in the (B − V)-M_★ plane of four different models: our best-fit model (first column), a model with constant t_s of 300 Myr (second column), a model without RPS from the ICM (third column), and a model without morphological evolution (fourth column). Red (blue) colours indicate an excess (a deficiency) of galaxies in the model compared to the data. The top and bottom rows show the Spi and S0 populations, respectively. The green ellipse highlights the excess of low-mass red spirals in the model with constant t_s. For each model we also list the value of the log likelihood (Equation (6)). For brevity, we only show the results at the redshift of the OmegaWINGS clusters.