Some examples of extended sources in the data release published with this paper. From top left to bottom right: M 51, M 106, the galaxy cluster Abell 1550, and the complex blend of emission coming from both active galactic nuclei (AGN) and diffuse sources in the intra-cluster medium of Abell 1314. Contours are at (4.5, 8, 15, 30, 50, 100) mJy beam⁻¹, so that the first contour is approximately at 3σ.