Maybe what would work is some sort of show/hide comments. That is, at a keystroke be able to flip the contrast on comments to read them, then reverse it to look at the code.
The contrast between hues has the enormous benefit of being both obvious and ignorable at the same time, depending on your frame of mind -- comments stand out, but it's also easy to think "brain: ignore anything green". I suspect this would work with any (primary?) color (though it will change what other colors are available for everything else)
I do have one environment (which I barely use) that has comments as a dull gray like the article has, and now that my attention has been drawn to it I realize I actually kind of hate it, and I'll probably end up changing the color scheme.