I am using Shapr3D in Windows Pc. How I can change the background color in 2D Drawing? In official tutorials, the background is dark blue, and the lines are white… in my drawing, the background is white, and the lines are black.
The blue background is activated only in Dark mode, and for display only. Exported drawing will always have the white background.
So Settings → Theme → Dark and screenshot of the drawings as @MichaeI suggested seems to be the easiest way to get that blueprint effect.