I consider it appropriate to implement such a function. It is difficult to decide when studying a directory of several hundred folders, which has already been viewed.
I suggest creating a list with absolute paths that highlight the folder or display an icon or caption to the sketch.
Also create a custom folder list (for example, the artist's name) to understand that the highlighted folder in accordance with the list is available in the library
Highlighting the watched folders
Moderators: helmut, XnTriq, xnview