V-band attenuation (A_V) vs. stellar mass (log M) color-coded by the mass-weighted stellar age (⟨a⟩_*^m). Our sources are represented as stars. The solid and dashed black lines indicate the predicted A_V − log M relation by McLure et al. (2018), based on the assumption of Calzetti and SMC-like attenuation laws, respectively. We also include literature results for high-z sources (Boquien et al. 2022; Curtis-Lake et al. 2023; Curti et al. 2023; Bunker et al. 2023; Markov et al. 2023; Harshan et al. 2024; Carniani et al. 2024; Tripodi et al. 2024; Ormerod et al. 2025), shown as gray symbols. Median values for continuum, continuum+line, and line-only samples of z ∼ 7.5 − 12 galaxies from the JWST Technicolor (Program ID 3362) and CANUCS (Willott et al. 2022) surveys are indicated as empty gray, blue, and red squares, respectively (Martis et al. 2025). The 1σ uncertainties are indicated as error bars.