As kind of a follow-up to #981274: (Accessibility) Background color is defined, but text color is not I would suggest using a litte more prominent colors for the different links in the GUI (see screenshot):

td.state a.features-storage.admin-default {
background-color: silver;
color: lime;
}
td.state a.features-storage.admin-overridden {
background-color: silver;
color: red;
}

Features CSS colors.png

Files: 
CommentFileSizeAuthor
Features CSS colors.png8.49 KBFrank Ralf