Energy distribution of γ-rays produced via inverse Compton scattering on CMB (labeled as ICS on CMB) by electrons with different energies, indicated as tags for each set of spectra (top). Spectra of γ-rays from inverse Compton scattering on EBL (labeled as ICS on EBL) for a range of electron energies (middle). Energy spectra of pairs produced in interactions of γ-rays with CMB photons (bottom). Energies of the primary γ-rays are shown as tags for each group of spectra. In all cases, the codes used for the model calculations are specified in the legend.