There is a problem in the Power Query Editor, Query Dependencies view. The background and foreground colour of the data source and query names are almosty identical to each other.
The only way to view these currently is to hover the mouse over the labels individually so it highlights. This makes it impossible to work with that view (see screenshot below for an example):
The same issue has been reported internally: CRI 138642276. Will update here once I get any information.
Best Regards,Qiuyun Yu
The fix will be available in the next Power BI desktop release.