Project Settings is a menu where you can set project information and tool links.
Overview
You can check information such as Project Key and Display Name set when creating a project, and edit the Display Name.
Tools
In order to use the Tools pre-registered by the System Administrator in the Project, you need to set an Endpoint for each tool.
Go to the Tools tab and edit the Gitea Endpoint.
Select the Endpoint of the tool and click the Save button to save the settings.
After setting, if you refresh the screen, you can see that a menu called DevTools has been created in the side menu bar. If you expand the DevTools menu, you can see that the Gitea Tool you just set has been added to the menu.

When you add other tools, they will be added to the Dev Tools submenu.