Comparing columns and highlighting differences

Hehe no worries, description was a bit vague

So new workbook is uploaded, this time with a text box describing what I would like to do and the cells colored accordingly.

Don't think I mentioned that even though both data sets are sorted it is possible for entries to occur in one set but not in the other. So a line by line comparison is not possible.

I have added this situation to the example sheet as well.
Best regards