I have 5 books on UE every one has this impossible to read UE4 black background, its crazy really I tried even a magnifying glass. It is just impossible to print anything with that black background. Going forward is there a way to print these blueprints from courses and such so that they are readable. and do not use a toner up in a few pages? Like white background, black outlines on the boxes? Thanks!
There is most likely a way to modify the background colour in the Blueprints viewport through code but that would be up to the creators of the book to go through that process.