Perhaps it is because I am in a dark room reading in bed with a MacBook Air set at 50% brightness, but I actually really liked the experience of reading that. Though I can absolutely understand where someone might not.
[1] It's a Japanese office. These people really like their cold bright neon. I think it has to with dark east asian eyes.
The colors aren't that beautiful but it's much less stressful for my eyes, and the highlight colors were spot on as well.
Thanks to emidln for informing that it's Solarized Dark, I've used the default Solarized but I've skipped the Dark one because of somewhat ugly colors.