Hopefully less confusing, the crossed out rectangle is also used inside
the tiles for deleted comments, and the two are independent.

Change-Id: Id06fbf6ec1b21dfbab1c126c3c432f91cf51430c
Reviewed-on: https://gerrit.libreoffice.org/27503Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Jenkins <ci@libreoffice.org>