Spectral signatures of PMJ dark features and reference average profiles in the Ca II 8542 Å and H α line from the CRISP instrument for datasets A and B as indicated. The different line styles for the various H α line profiles denote the following: grey solid lines, the line profiles of dark features for PMJs that clearly exhibit such features in the observations; red solid line, spectral profiles of event A10; black solid line, the average profile of this sample of PMJ dark features; green-dotted line, the average line profile across all pixels in the observations; and green-dash-dotted line, the average line profile in the penumbra of AR12533.