Elemental abundances. [X/Fe] and [Fe/H] abundance density estimation (violin representation) of FSR 1758 (black) compared to Galactic GCs at similar metallicity from Mészáros et al. (2020). Panels a and b: our determinations by adopting photometric atmospheric parameters from photometry and spectroscopy (see Table 2), respectively. Each violin representation indicates, with vertical lines, the median and limits of the distribution. Panels c–f: [Al/Fe]–[Mg/Fe], [N/Fe]–[C/Fe], [Al/Fe]–[Si/Fe], and [Al/Fe]–[N/Fe] distributions for GCs from Mészáros et al. (2020) at similar metallicities. The black dotted line at [Al/Fe] = +0.3 denotes the generalized separation of first- and second-generation stars as envisioned by Mészáros et al. (2020). FSR 1758 stars (shown as star symbols) refer to our determinations with adopted photometry parameters, while the blue lines show the corresponding position of [X/Fe] determined from spectroscopic parameters. The typical internal error bars are also shown.