Left: X-ray colour (F₂₋₇/F_0.5−2) against 0.5−7 keV band flux for the 33 XMM exposures for PID 203. Right: 0.5−2 keV (filled circles) and 2−7 keV (open squares) continuum slopes (photon index Γ) against the 0.5−2 keV and 2−7 keV fluxes, respectively, in units of 10^-14 erg s^-1 cm^-2 for the six XMM intervals. Although a constant hypothesis cannot be ruled out for both slopes, the “steeper when brighter” trend often observed for AGN slope variability is not seen.