Location of the identified PNe on a map of [O III]/Hα. The coordinates of all objects are given in Table B.1. Blue and red circles indicate spectroscopically confirmed candidates (Class 1 and 2 in Table B.1) with and without He IIλ4686 detection, respectively. The orange squares indicate candidates visually identified in the HST+MUSE dataset (Class 3 in Table B.1). In purple we indicate the outer boundaries of the H II regions.