Summary plot with the STIX reconstructed images for all events considered in this paper. Gray contours (50, 70, and 90% of the peak intensity) represent the images of the sources obtained during the onset interval, and the blue and red contours (50% of the peak intensity) the nonthermal (22–50 keV) and thermal (5–9 keV) images, respectively, obtained around the nonthermal peaks. The error on the location of the onset sources has been estimated by means of the FWDFIT algorithm, and they are shown as gray crosses.