Hε line core observations of a quiet Sun and pore region. The images are histogram equalized to the synthetic Hε line core image in Fig. 6. Left panel: quiet Sun observation with a wide band insert at the top right corner. The WB insert covers the area outlined by the light blue square and includes a few magnetic bright points. Right panel: more active scene close to a pore region (taken at 08:49:45 UT) with a zoomed-in insert at the top right corner (the insert is more saturated to highlight dark fibrils). Crosses indicate positions of spectral profiles shown in Fig. 2 with the same color coding.