diff -uNrp anaconda-29.19.2.17.orig/data/anaconda-gtk.css anaconda-29.19.2.17/data/anaconda-gtk.css
--- anaconda-29.19.2.17.orig/data/anaconda-gtk.css	2019-12-13 07:20:52.000000000 -0600
+++ anaconda-29.19.2.17/data/anaconda-gtk.css	2020-04-25 21:13:42.388430421 -0500
@@ -92,6 +92,7 @@ infobar.error {
 
 @define-color redhat #2d2d2d;
 @define-color fedora #2f4265;
+@define-color centos #000a38;
 
 /* theme colors/images */