In previous versions of JIRA, I was able to create a banner (i.e. classification) in JIRA in the <jira.home>/atlassian-jira/WEB-INF/classes/templates/plugins/topnavigation/topnav.vm file and the corresponding footer.vm file. Now, I'm no longer able to create the top banner because the topnav.vm is GONE.
Please advise how to create a top banner (i.e. header) in JIRA.
Thank you.