I use png files for matplotlib scatter plot’s markers.
How I can set plot’s legend with those png files?

    def getImage(path):
        return OffsetImage(mp.imread(path, format='png'), zoom=.5)

    for idx, row in df.iterrows():
        ab = AnnotationBbox(getImage(dimg[idx]), (dlat[idx], dlon[idx]), frameon=False)
        mp.gca().add_artist(ab)

Please help.
Thank you!