Projected radial distribution of F3D GC metallicities from full spectral fitting. GC metallicities relative to the central pixel of the host are shown as a function of GC projected galactocentric distance relative to the host’s effective radius for comparison between galaxies. The symbols are colour coded by the host’s stellar mass from Iodice et al. (2019a) and Liu et al. (2019). There is one additional GC of FCC 170 with R/R_eff ∼ 5 that is not shown in this figure.