The Clean Project Dashboard is a convient editor tab which highlights the cleanup state of your project.

This list contains all the root Core Assets. This include automatically added and manually marked assets and folders. (What are Core Assets).
A list of all the assets currently considered unused across the whole project. (What is considered unused).
Action buttons to quick launch a Cleanup operation project wide.
Whether the dashboard needs a refresh or not. If the dashboard is up to date, it will display Index is up to date or Index is NOT up to date if a Refresh is needed.
For convience a refresh is automatically execute when an asset is modified on disk or when the plugin settings are changed. However, to avoid slowing down operations, refresh will be skipped if they happen too often. These can be changed inside the settings.

Shortcut to quickly launch the Plugin’s Project Settings section.
Shortcut to quickly launch the Documentation in your browser.