This bug was fixed in the package horizon - 2:9.1.2-0ubuntu2
--------------- horizon (2:9.1.2-0ubuntu2) xenial; urgency=medium
* debian/theme/ubuntu/_styles.scss: Ensure btn-primary text color takes precedence (LP: #1481216).
-- Corey Bryant <email address hidden> Mon, 25 Sep 2017 16:27:00 -0400
This bug was fixed in the package horizon - 2:9.1.2-0ubuntu2
---------------
horizon (2:9.1.2-0ubuntu2) xenial; urgency=medium
* debian/ theme/ubuntu/ _styles. scss: Ensure btn-primary text color takes
precedence (LP: #1481216).
-- Corey Bryant <email address hidden> Mon, 25 Sep 2017 16:27:00 -0400