I do agree with Mapperoni.
I created a Topo v4.gmap folder with gmaptool and jawawawawa Converter. Then I added into Topo v4.gmap :

1- addition folder with .db file.
2- info_v2.xml file filled with Raspi stuff.

Although named trails appear in BaseCamp, if you select one you only get the start- and end point of the Trail, no dark-blue highlighted trail in Basecamp and on your GPS you'll see a straight line between start- and end-point.