Coronal image and thermal structure. The top left panel shows the AIA image at 193 Å. The other panels display spatial maps of the differential emission measure (DEM) at different temperatures T labeled by log  T [K]. All panels show the same field-of view that is identical to Fig. 2β. The plage region with the miniature loop-like structures is in the bottom-right part. For a better comparison between the panels we add contour lines of the brightness in the AIA 193 Å channel to all the panels. The numbers with the levels denote the percentage of the peak 193 Å brightness in this field-of-view. All DEM maps have the same dynamic range of 10⁴ although their lower (and upper) limits change to best represent the DEM structures. See Sect. 5.1.