Example fits to individual features. The dotted black curves show the observed spectrum of the WLM GC, while the thick solid curves (red in the online version) are the best-fitting model spectra for the wavelength bins shown in the figure. The thin curves (blue in the online edition) show models where the abundances of the corresponding elements have been varied by ± 0.3 dex. The spectra have been smoothed by a Gaussian kernel with σ = 1.5 pixels.