RIOS activity score layers
I was reading the RIOS manual and I have a question about how activity score layers are calculated. In Figure 6, the manual states
"Each transition score is assigned to the activity that causes that transition, producing the biophysical activity score". In the RIOS step-by-step guide (page 14), the manual states "activity_scores: Folder containing rasters showing the final calculated score across the landscape for each activity. The files named <activity>_<suffix>.tif contain scores across the whole area of interest."
I have been looking at my own results to understand how activity score layers are calculated, and I can't see how they come about. Is there an explanation I am missing?