Returns an Shading object which on which you can manipulate the shading (fill color and/or pattern) properties for this cell.

 public Shading Shading{ get; }
Public ReadOnly Property Shading() As Shading

MS Word equivalent: Format menu > Borders and Shading... > Shading tab


          cell.Shading.BackgroundColor = Color.Gray;
        

          cell.Shading.BackgroundColor = Color.Gray