Distribution of the Sérsic index for the different bands for the cluster galaxies sample. Ellipticals, S0s, and early- and late-type spirals are in red, black, green, and blue lines, respectively. The vertical solid and dashed lines show the weighted median values and their corresponding uncertainty of each galaxy type calculated as , where σ is the standard deviation and N is the number of galaxies in the sample. The legend indicates the number of galaxies per type.