Pseudo-continuum fits (solid purple and blue curves) for the two-epoch spectra of quasar J0935+4953. The flux density is expressed in units of 10⁻¹⁷ erg s⁻¹ cm⁻². Prominent emission lines are indicated by the vertical dashed blue lines spanning the two panels. The blue horizontal bars at the top of the upper panel denote the relatively line-free regions employed for fitting the power-law continua. The dashed purple line in the lower panel illustrates the final pseudo-continuum fit for the MJD 52 641 spectrum. The dotted lines at the base of each panel represent the formal 1σ uncertainties.