Breadcrumbs on a map via lights

On public transport systems such as subways and trams, there are often charts with lights indicating stops along the line, as in:

However the convention is not the same in both: in the French example above (first picture), the lights indicate stations to be served, while in the Brazilian case (second picture) the lights indicate stations already passed through.

I would believe that the former is more informative, since it allows knowing for instance if some stations will be skipped. Knowing which stations have already been visited seems mostly useless to a passenger.

However, since the Brazilian subway is newer, I wonder if it is a new convention? Is there some general principle being followed here? Did I miss some use case?