unknowndomain said:there is a tool which find the outlines, you could take that, then invert the image colours, grayscale it, return to rgb then colourize it using the hue/saturation tool and make it look blue, then adjust the brightness and contrast.
That might work
Slime101 said:Drawings done in CAD dont look blue, it stands for computer aided design, most CAD drawings are printed in B&W or colour on white paper on a plotter! - those "blue" things are blueprints which these days arent really blue either!