Highlight mode is a special design mode that makes it easier to trace the entire connection path or all connections for the selected resource.
There are two ways of switching to highlight mode:
To trace the entire connection path, you need to right-click on one of the connections and select the Highlight Path option.
To view all connections for a particular resource, you need to right-click the resource and select the Highlight Connections option.
In order to exit highlight mode, you need to click the Exit Highlight Mode button in the upper right corner of the menu bar.