Posterior distributions of the retrievals from the bottom panel of Figure 4 (the inset refers to non-shared parameters). The colors are maintained across the figures: red indicates the spherical particles (Full), orange the spherical particles (NIRISS+NIRSpec only), and blue the porous particles (Full). Retrieving the porosity of aerosol particles is difficult with JWST data, as indicated by the fit obtained from the spherical particle retrieval in the bottom panel of Figure 4. The model compensates by introducing a bias in the particle size and abundance, but the chemistry remains similar.