Two-dimensional Mg II h spectra. Shown are the spectra of the ten stacked offset threads with example spectral cuts. The coloured dotted lines in the left panel correspond to the coloured solid lines on the right. This field of view of the plot has been extended to include all of the threads, but Fig. 2 is restricted to the field of view from 9000 to 11 000 km. The units of the colour bar are erg s⁻¹ cm⁻² Å⁻¹ sr⁻¹. This figure originally appeared in Peat (2023).