Comparison of D_Lyα to the spectral β_UV slope (left) and the ionizing photon production efficiency, ξ_ion (right). The JWST-PRIMAL sources are shown by the red squares and color-coded according to redshift (identical to Fig. 12). The light- to dark-blue colored regions in the left panel indicates increasing escape fractions of LyC photons, $f_{\mathrm{esc}}^{\mathrm{Lyc}}$, based on the low-redshift empirical relation between β_UV and $f_{\mathrm{esc}}^{\mathrm{Lyc}}$ from Chisholm et al. (2022). The grey-colored band in the right panel shows the canonical reionization values log(ξ_ion/Hz erg⁻¹) = 25.1 − 25.3 (Robertson et al. 2013). Strong LAEs are observed with a large variety of β_UV slopes, but are predominantly associated with galaxies with high ionizing photon production efficiencies. Galaxies with strong DLAs span the entire probed range in ξ_ion.