Sets or returns a boolean that represents whether or not Word will shade form fields in a document.

public boolean ShadeFormFields{ get; set; }
Public Property ShadeFormFields() As Boolean

This option is set to true by default.

MS Word equivalent: Tools menu > Options... > View tab > Show section > Field shading

          //--- Return ShadeFormFields
          bool shadeFormFields = viewSettings.ShadeFormFields;

          //--- Set ShadeFormFields
          viewSettings.ShadeFormFields = false;
        
          '--- Return ShadeFormFields
          Dim shadeFormFields As Boolean = viewSettings.ShadeFormFields

          '--- Set ShadeFormFields
          viewSettings.ShadeFormFields = False