OnGetSlideColor
Provides opportunity for changing background color of slide.property OnGetSlideColor: TNxGetSlideColorEvent read FOnGetSlideColor write FOnGetSlideColor;
Event include Index parameter that identify index of slide being painted and var SlideColor parameter that can be set to desired TColor.
Example
procedure TForm1.NxSlidesGridView61GetSlideColor(Sender: TObject; Index: Integer; var SlideColor: TColor;
State: TNxSlideDrawState);
begin
if Index = 1 then SlideColor := clCream;
end;