FCC 219: similar to Fig. 1, but show the PNe within FCC 219. Sources are highlighted by black circles, and blue square indicate the sources that we matched with those of McMillan et al. (1993) within the FOV. The central mask, located towards the south of the FOV (dashed circle), excludes regions affected by diffuse ionised-gas emission (see Iodice et al. 2019b). A foreground star is also masked out. This is indicated by the small dashed circle to the right of the FOV.