Difference between the FUV attenuation estimated from various methods and from the recipe of Hao et al. (2011) versus IRX. Each line represents a different recipe that depends on IRX: Boquien et al. (2012, blue); Buat et al. (2011, green); Burgarella et al. (2005, red); and Cortese et al. (2008, cyan (τ ≤ 2.6τ ≥ 8. The points represent the difference between the FUV attenuation estimated from CIGALE and Hao et al. (2011). Their colour is indicative of the average sSFR over 100 Myr (⟨sSFR⟩₁₀₀), following the colour bar on the right.