How can I make grid lines thicker in LibreOffice Draw?

I just found the following useful, answered question:

The above answer suggests how to change the colour of the lines but that solution is not sufficient for me. What I also need to know is this: is it possible to change the thickness of the grid lines?

I find the grid lines too thin, even when set to black. Strangely, the lines are easier to see when zoomed out but when I zoom in, the lines get progressively fainter until I can not see them anymore.

The drawing grid always consits of points shown as one pixel each for the subdivision and of tiny crosses made from two “lines” three pixels long and one pixel wide for the main grid. There are no continuous grid lines at all.

As far as I know there is no way to change that.