EM_l maps for the cluster box, calculated using particles with zero (left) and non-zero (right) metallicities. In both cases, the same density and temperature cuts (corresponding to eWHIM50) are used. While in the left plot, a filamentary structure is obvious, in the right-hand panel the same structure is traced by round regions, which apparently correspond to the outskirts of individual small halos. An implication is that in the Magneticum simulations metals (more explicitly-particles enriched with metals) stay in the vicinity of individual halos rather than spread quasi-homogeneously through the volume of the filaments.