Differences of the band-integrated transit depths from those in the J band as a function of atmospheric metallicity for two different values of the eddy diffusion coefficient, K_zz: (a) 1 × 10⁷ and (b) 1 × 10⁹ cm² s⁻¹. Transit depths for the hazy atmospheres are plotted with solid lines, while those for the haze-free atmospheres are plotted with dashed lines. The values of the transit depths are normalized by the transit depth difference caused by one atmospheric scale height in the fiducial case (1 × solar and K_zz = 1 × 10⁷ cm² s⁻¹), ΔD_{H, fiducial} = 2 R_refH_ref/R_s², where R_ref is the planetocentric distance to a reference pressure level, H_ref is the pressure scale height at R_ref, and R_s is the stellar radius (see the text for details).