And another grump about LibreOffice 6, or at least the Leap 42.3 repository version... the black arrows at each end of the scroll bars have disappeared. Does anyone know how to get them back?

LO doesn't seem to honour the scroll-related variables set in the KDE system-settings either, though it does honour others. On this system at least it scrolls by six lines with the mouse-wheel scroll distance to '2' in the system settings.

It's nice to have window decorations more or less like the ones set in the system settings, but I'm now wondering whether I should go back to the ODF version.