Left: Zn abundances derived from Zn i lines with the 3D model, shown as a function of equivalent width and lower excitation potential. Right: line-by-line differences between Zn abundances obtained with the 3D and ⟨ 3D ⟩ models, and between those obtained with the 3D and HM models. Trendlines give equal weight to each line (unlike our mean abundances, where we give larger weights to better lines).