Update of blacklist for $WITH_THEMES
Fallback to Tango for ancient/unknown DE, Colibre only on Windows
MPL vs. non-MPL on macOS

Change-Id: Ibea9e9429a79911d632b54fa4aa9649003830aa3
Reviewed-on: https://gerrit.libreoffice.org/55295Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Heiko Tietze <tietze.heiko@gmail.com>
Reviewed-on: https://gerrit.libreoffice.org/54794