WD isochrones in JWST filters. Left panels: distribution of the evolving WD mass as a function of the JWST F200W absolute magnitude along the 8.0, 8.5, and 9.0 Gyr [Fe/H] = 0.3 isochrones with neon distillation, calculated with either the c07 opacities (solid lines) or the corresponding isochrones in a JWST CMD (solid lines in the lower panel), compared to the counterparts without neon distillation (dashed lines in the lower panel). Right panel: same as the left panels, but for isochrones calculated with the b20 opacities.