New Support Admin Tools & Announcement Banner for Jira Cloud – www.MrAddon.com ®: Jira & Confluence Administration Support Blog & Ethereum Dev Blog – [www.MrAddon.blog] ®
Insert custom CSS in the Announcement Banner | Ravi Sagar
Hide Elements in Jira Issue Views – Atlassian Expert
Customizable Announcements for Jira | Atlassian Marketplace