UMAP embedding for the latent representations. Each dot corresponds to a synthetic galaxy from the test sample. The closer two galaxies are on the map, the more similar are their latent representations. Different colour maps are set according to the cosmic time at which 10% (top left) and 90% (top middle) of the total stellar mass is reached, the [M/H] (top right), and the two line indices Hβ_o (lower left) and [MgFe]′ (lower right). Clear trends can be observed, demonstrating that the information encoded in the latent vectors is optimal for recovering the SFHs and metallicities.