Let's add our own bells and whistles to the library. Especially, I'd like to see code highlighting (anything will do), which is clearly needed and would be a great way to emphasise the important parts.
Currently, the best posters can do is ASCII art arrows, which happens often enough and is probably not done more because it's a hassle, like:
printf("%5s", "foo") ^--- add a width valueIt would be great to highlight the 5 in red or even circle it (too fancy?).
Other ideas welcome in discussion.
But seriously, why don't we have our own prettifier?