Understanding NMF output "mean_nUMI_factorsfact"

After running res_dict, adata_vis = run_colocation(), new columns called “mean_nUMI_factorsfact_n” (where n = 1, 2, … R) are added to the adata_vis object. I’m hoping to get a clear understanding of these values. I can glean from the tutorial that these values must be “location_factors_mean/: the data used for the plot in spatial coordiantes”. But what do the data represent? This notebook suggests these are “the abundance of each cell type group across locations”. Do “cell type groups” refer to factors identified by NMF? Are they similar to the main cell2location output of absolute cell type abundances per spot (from the posterior distribution)? Maybe they are mean values from the distribution since it reads “mean_nUMI…”. I’d greatly appreciate any insight. Thank you.