Good catch! I didn't see any of that very, very faint shading until I increased the zoom for the document (poor eyesight or poor monitor—or both—I guess).
Since all of the shading appears to be direct formatting, running this macro will be the quickest fix:
Sub RemoveAllDirectShadingFormatting()
With ActiveDocument.Content.Font.Shading
.Texture = wdTextureNone
.ForegroundPatternColor = wdColorWhite
.BackgroundPatternColor = wdColorAutomatic
End With
With ActiveDocument.Content.ParagraphFormat.Shading
.Texture = wdTextureNone
.ForegroundPatternColor = wdColorWhite
.BackgroundPatternColor = wdColorAutomatic
End With
End Sub
Open the Visual Basic Editor (Alt+F11), create a new module, and paste in the code. Then run it with F5. For assistance, see
http://www.gmayor.com/installing_macro.htm.