I don’t know how new this feature is but I just noticed it:
By clicking on a lesson’s blue word count (above the text, at the end of the progress bar) you can now display a list of the remaining blue words.
Every now and then users post questions about a discrepancy betweeen a lesson that apparently contains zero blue words but which shows a blue word count > 0.
The discrepancy will not vanish but now we can at least see what these mysterious blue words are
Thank you!!