The quantity Π₀(n + α_g) plotted as a function of the dominant prograde dipole gravity-mode frequency with amplitude above 4 mmag (f_{dom,  ≥ 4 mmag}) for 105 γ Dor and SPB stars from Li et al. (2020) and Pedersen et al. (2021). The symbols have the same meaning as in Fig. 1. The relation given by Eq. (3) is shown by the red line, while the shaded area shows the 1-σ uncertainty region. The dashed lines mark the 1-σ confidence region, propagated forward from the confidence regions of the f_rot values.