this package seems to have new commits in its VCS but has
not yet updated debian/changelog. You should consider updating
the Debian changelog and uploading this new version into the archive.
Here are the relevant commit logs:
Author: Martin Wimpress <email@example.com>
Date: Sun Oct 6 22:48:49 2019 +0100
debian/rules: Remove obsolete *-border themes. (LP: #1769411)