Dust attenuation parameters as a function of V-band attenuation, A_V. Our sample is represented as gray stars. The left panel shows the UV-optical slope (S), while the right panel displays the UV bump strength (B) as a function of A_V. Black lines represent the best-fit correlations and their 1σ uncertainties for the subsets grouped by redshift, with shaded regions indicating the uncertainty ranges. The S − A_V correlation from Salim & Narayanan (2020) for a nearby (z ∼ 0) sample is shown as a blue dashed line in the left panel.