Spatio-spectral plotting without color saturation enhancement. The sky maps in the top and middle panel are based on the same color rendering as Fig. 2, 3, and 13, but were produced without the color saturation enhancement described in Appendix C. Top: Total diffuse emission reconstruction based on M2. Middle: Template-free diffuse emission I^nd reconstruction based on model M2. Bottom: Energy-dependent flux scaling factor (identical to Fig. 2) and mapping of photon energies and scaled flux densities to perceived colors without the color saturation enhancement.