Fraction of the total stellar mass contained in the different components of the Magneticum Box2 hr galaxy clusters versus time, determined for all clusters (left panel) and for the 50 clusters with the highest (central panel) and the 50 clusters with the lowest f_{ICL + BCG} for their halo mass (right panel). The fraction of stellar mass contained within the BCG is shown in red, while the fraction in the ICL, the second most massive satellite, and all other satellites are plotted in gold, violet and blue, respectively. The black vertical lines mark the times when the median mass of each group of galaxy clusters is M_200, cri > 1 × 10¹³ M_⊙ (dotted), M_200, cri > 5 × 10¹³ M_⊙ (dashed), and M_200, cri > 1 × 10¹⁴ M_⊙ (dash-dotted). We note that here we split the BCG and ICL at 0.1 × R_200, cri. For different definitions of the split between the ICL and the BCG, see Fig. B.2 in the Appendix.