Logarithmic Lyman α luminosity log₁₀(L_Lyα[erg s⁻¹]) plotted against the UV continuum magnitude M_UV, divided into MUSE-Wide (light green crosses and triangles) and MUSE-Deep (dark green open dots and triangles). The triangles show upper 1σ limits of M_UV for HST undetected objects. The diagonal black lines are lines of equal equivalent widths (at the median redshift of z ≈ 4 and using a β value of −1.97) to guide the eye. The grey dashed lines indicate M_UV = −18 and log₁₀(L_Lyα[erg s⁻¹]) = 42. The grey crosses in the top left corner show the median sizes of the errors (for objects with HST counterparts). The black stars show Green Pea galaxies from Izotov et al. (2016a,b, 2018a,b) that were all found to be leaking Lyman continuum.