First of all I'd like to thank Garmin and their developers the level of engagement I was pleasantly surprised to find in the forum.
I appreciate the recent efforts to increase usable screen size in basecamp and reduce clutter. Unfortunately for me I find the changes in track line thickness and points to be very hard to use.
In terrains with some serious level curves, rivers, changing terrain types, and a decent number of tracks, the recent change in line thickness makes identifying tracks harder than what it should. Also I use circular tracks to define boundaries and I don't find it feasible to do in basecamp anymore because I find really hard to see them.
I know line thickness may not have been as nice looking on the map as the current ones but it was very practical, and if I wanted to see what was behind I could one click a different list and back.
I'm hoping on next version we can have some global preference setting or at least a toggle between "old style" and "new" in line and point thickness.