Why are hyperlinks not colorized (libreOffice ?

Everything in LibreOffice works perfectly well under both lx and Win environments in my dual boot configuration, except for the fact that hyperlinks remain black, whether they were visited or not. I want to switch on the default beahavior of blue when not visited and red when already visited.
Note that when I try to colorize ANY text, I have the same problem. Everything stays black on white. This applies to color codes for changes being effected in any LibreOffice documents.
Can somebody help with that ? Cheers.