tdf#92425 - Correct the inactive pageindicators

The inactive pageindicators had the same grey like the active ones, I correct
this and changed the dark grey into light grey.

Change-Id: Iea810d466504ceb80750c45358a01f8b8d3c8b9e
Reviewed-on: https://gerrit.libreoffice.org/16621Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Yousuf Philips <philipz85@hotmail.com>
(cherry picked from commit c6483666)
Reviewed-on: https://gerrit.libreoffice.org/16735Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>