TMSFMXTableView - Item Caption Font

There are multiple ways, but the most convenient for all platforms is using the OnItemCustomize event

which is able to access the Caption with

procedure TForm1.TMSFMXTableView1ItemCustomize(Sender: TObject;
  AItem: TTMSFMXTableViewItem; AItemShape: TTMSFMXTableViewItemShape;
  AItemControlShape: TControl);
begin
  AItem.ShapeCaption
end;

Kind Regards, 
Pieter