Widgets Designer: Grid not visible in dark mode

In Dark mode, the 'grid' is not visible on the canvas. This is probably because the code tries to get a 'dark' color:

void Grid::paint(QPainter &p, const QWidget *widget, QPaintEvent *e) const
{
    p.setPen(widget->palette().dark().color());
    // ...

Should it be widget->palette().light().color for dark mode?