I downloaded a workbook from The Big Book Of Dashboards website and am trying to reverse engineer the visuals entitled "students" and "enrollments" respectively.  I am  having difficulty replicating all of the formatting.  Specifically, I am trying to get rid of the vertical lines that appear between years and all of the horizontal lines.  I have compared the format settings of the original workbook with my attempt and cannot see the difference.  What am I missing?  I would very much appreciate someone's help.  Thank you.