Segmentation masks of bright magnetic features derived from the observations shown in Fig. 1 by applying the two methods described in Sect. 2.3. Panel a: mask of magnetogram and panel b: mask of Ca II K image derived with Method 1, showing plage (red), network (green), and QS (blue). Panel c: mask of magnetogram derived with Method 2, showing individual activity clusters with different colours (the QS is in dark blue). The masks are shown prior to the exclusion of the sunspot regions.