Draw a straight line

[Simon W]

I want to draw white straight lines in Publisher. I used the Pen tool. I selected white fill  Stroke white 10 pt wide and Line Mode selected. Every time it draws a very thin red line. The fill box shows a thin red diagonal stripe on the toolbar. I click on it and select white, but it keeps reverting back to this thin red line! Macbook Pro, OS High Sierra 

[Joachim_L]

Select a colour for the stroke, not for the fill.