I am learning Sketch v49.
As a simple example, I have one layer with one path, the path is without a fill or a border.
When I mouse over the path in the layer list, Sketch highlights the path blue.
When I select the path in the layer list, Sketch displays the bounding box around the path, but no longer highlights it blue, so I cannot see it.
When nothing is selected, I cannot see the path at all, and the page appears invisible.
How can I set Sketch to show me the path without changing the properties or style of the path itself? Basically, I want (something like) the blue outline shown all the time.
Of course, my actual project is many paths, some are complex combined shapes. All have no fill or border, so everything is "invisible". To see all the paths at the same time, I must edit every path and add a border.
This seems like I must be missing something obvious.