I need a software to draw electronic circuits and graphs.
I need my graphs to be in white font and with black lines as the circuits and graphs will be used in a helping-book for students in a school and they need to be easy readable.
I used workbench8 for my circuits but the graphs it produces are not what i really want (workbench graphs are drawn with blue and red lines)

I want the graphs to look something like this

What program should I use?

 

If it's just the color that's the issue, you could always use workbench to generate the graphs and then import to any image editing software and convert to black/white and increase contrast for nice dark black lines. Many of today's image editors let you run batch processes as well, so you could convert all your graphs at once.

I'm sure others will be able to recommend good software, but that seems like a simple solution.