Comparison between models in the spectra range 2900 and 3300 Å. Top panel: four models with T_eff = 10 000 K, v_max = 2500 km s⁻¹, and respectively no Li and Be abundance (red), and 1 (cyan dashed), 100 (blue), and 10 000 (black) times solar Li and Be abundance. Second panel: same as top panel, but with T_eff = 12 000 K. Third panel: same as top panel, but with T_eff = 15 000 K. Bottom panel: same as top panel, but with T_eff = 18 000 K. The red curves are barely visible because they follow the cyan dashed curves almost perfectly.