I'd like to know how to set a given color (selected using a PoppenObject)
in a NListtree list for some entries.
I'm using a header for the text entries like "\033P[-1]" but I can't
select a given color using this method, only colors defined by the
system. My idea is to choose the colors for the pen and the background
for some entries, if possible... I have not found any example for doing
this. Any idea ?