[PD] grey checkbox in Deken: Tri-Option? More questions and mailinglist archive search

[Peter P.]

Hi,

just found out that the checkbox for the Deken preference "Should newly
installed libraries be added to Pd's search path?" has three states, on,
off, and a grey check ("perhaps"?). What is its meaning?

What is the meaning of the "Check" button in front of some of the
directories in the same dialog by the way? What is the meaning of the
line separators between some of the directory entries? Why is the
~/.local/lib/pd/extra directory present two times in this dialog on my
Pd Debian installation?

Thank you for all hints!
P

PS: It would be great if the Mailinglist archive search would return
results which always show the messages' subjects. I do get mostly lines
of
"/pipermail/pd-list/attachments/20160610/6ffecf40/attachment.html"
There might be a reason/problem to the archive search engine...