The site is using pale text on a default background, so it looks fine with my white-on-black GTK theme, but I imagine is unreadable for most of the world.

Many sites make the mistake of mixing default and non-default colours, but this is the first time I've seen it work in my favour ;) Presumably most devs aren't doing any kind of contrast analysis on their CSS, and are only testing with a black-on-white colour scheme.

Of course, I could avoid this problem by giving up my preferred colour scheme; but why do that when I can walk the DOM after page load, and invert all of the low-contrast colours? http://chriswarbo.net/git/warbo-dotfiles/branches/master/con... ;)

And the pdf version, which makes it easier to read the figures and tables along with the discussion: http://delivery.acm.org/10.1145/2740000/2736282/p90-gulwani....

I love that the ACM provides HTML versions of articles from the Queue, but the figures and tables are not well integrated with the text in the HTML versions.