Influence of the adopted magnetar-power deposition profile on the optical luminosity. We show the he6p00 model at 3100 d influenced by a magnetar power of 10³⁹ erg s⁻¹. The adopted clumping is uniform and corresponds to a volume filling factor of 10%. Here, the power is injected in the form of X-ray irradiation from the central remnant with various choices of V_X. [See Section 8 for discussion.]