Suggestions for easy ways to archive/print roast curves?

I have been keeping a roast binder with my roast curves printed. I havent found a good way to print the graph, so I end up screen printing, opening in MS Paint, inverting the color (from the dark theme) and then printing. I’m really hoping there is an easier way. Any suggestion? Can this feature be added?
I hope this is the right place to post this. Thanks for your time!