Posted by dellus on
URL: https://forum.librecad.org/change-colours-so-that-I-can-see-what-I-draw-tp5724824p5724827.html

You can't change the screen colour of lines which are meant to be black on paper or pdf output. You can of course use a coloured pen or layer colour, and then in Print Preview set Black/White mode for output.

I personally prefer a light grey background, like #ebebeb, I find it easier on the eyes.