The spectral decomposition (SDEC) plots of SN 2022xlp at t_exp = 6.0 days (top), t_exp = 19.0 days (middle) and t_exp = 73.0 days (bottom). The figures show the synthetic model spectrum and also the contribution of various light-matter interactions and elements to the spectrum, indicating how much they add or subtract from the spectral luminosity density at different wavelengths. The red dashed line represents the Planck curve corresponding to the photospheric temperature.