Hello,
I have changed the line thickness of the callout box to a thicker line and also changed the colour to grey so that when it prints I have the box which will be clearly seen but at the same time not intrusive with the important lines in the drawing. I can see it's grey on the screen but when I print it prinks black lines no matter what I do (even changed the override function). Strangely I have walls and columns grey shaded and they print fine and also created a greyline with similar thickness and it prints grey. Does anyone have a solution? Thanks