Top panel: spectrum of an EB in H α line observed by THEMIS/MTR spectropolarimeter. The two red arrows indicate the EB in I+V and I-V channels. Bottom panel: Hα profiles – Observed profiles: EB profile of the THEMIS spectrum shown in the top panel (solid black line), observed nearby quiet Sun profile from THEMIS (thin black line). Synthetic profiles computed from NLTE modelling: QS (purple solid line). All colour profiles described with letters from A to E are calculated for each best model of selected CBs (A − red; B − orange; C − light green; D − light blue; E − dark blue). Intensity units is (erg s^-1 cm ^-2 Å^-1sr^-1), Δλ unit is Å.