On the change screen dependencies to outdated patch sets are highlighted by a red background because they prevent the change from being merged. The same is true if a change depends on an abandoned change. This is why dependencies to abandoned changes should be highlighted by a red background as well. Change-Id: I5e81b08b1d41aa3b097b5f76293e62b0e6270b4a Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>