Schematic view of SMACS J0723 stellar content and substructures. The filled contours are drawn from the F356W ICL+BCG map produced by DAWIS. Purple circles indicate satellite galaxies (see Sect. 2.2). Galaxies discussed in the main text are indicated by numbers (1–14, see Sect. 4.2). The main tidal features are highlighted with coloured annotations: the E, SE and S tidal streams are shown in dark green; the external section of the big W loop in light green; and the NW bridge in blue.