For project-related metadata, there is a view that you can access Metadata on the left side.
Next, select "Software Project Metadata Screen" from the drop-down list.
You will notice that the page changes and you will be asked for information (the screen can be customized by Jira administrators see: How to use the Metadata Screen).
Let's change some values. Set the "Risk" to "Red" and the "Influence" to "Medium"
You can also specify metadata for components and versions.
As with the projects, this metadata visualization can be customized (see also: How to customize the Metadata User Screen as Jira-Administrator).
Metadata Project and People Overview in action
Metadata Project Overview