Icons refreshed according Tango style

Change-Id: Ibb86ea0a7153f0ac7331d278b2dcd8f8c64835e7
Reviewed-on: https://gerrit.libreoffice.org/32998Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>