Relations between stellar and planetary properties. In the top two panels, planet radius and density are shown as functions of stellar metallicity ([Fe/H]), with points color coded by stellar effective temperature (T_eff). The bottom panel displays orbital period versus T_eff, color coded by [Fe/H]. The multiplanet systems are linked by black-dashed lines. The sample is small and selected from specific JWST observing programs targeting interesting planetary systems; therefore, the distributions are subject to selection bias, and any apparent trends should not be interpreted as representative of the broader exoplanet population.