Coloring records in a Form

I was working on a request , where user want to have salesorder of having SalesStatus  cancel in Red color ,

I achieved this by overriding method Displayoption of datasource salestable as below :

public void displayOption(Common _record, FormRowDisplayOption _options)

{

    ;

    if(_record.(Fieldnum(salestable,salesstatus)) == SalesStatus::Canceled)

    {

        _options.backColor(WinAPI::RGB2int(255,100,100));

    }

    super(_record, _options);

Hope this will help , thanks

}