This article explains how to add CSS styling to the Issue Matrix panel in Jira on the Server instance using the app Issue Matrix.
Instructions:
- Login to Jira as an Administrator.
- Navigate Cog wheel → Issues → custom fields → Add custom field.
- Select All custom fields and search for "Issue Matrix" and click on "Next" as shown in the below screenshot.
- Add a name to the custom field (for example: Issue Matrix_2)
- Add the custom field to the respective project screen:
