We also added themes (in the side menu) to address some of the feedback on contrast. Classic theme reverts to the color scheme of the old site. And you can fine tune the individual colors further in Settings.
I can't express how much I like having a dark theme. Thanks so much for making a page I can refer to at night that is both clear and doesn't feel like I turned a lamp on two feet from my face!
Thanks! I'd totally miss the themes functionality if not for your comment. Just switched to Dark to match my desktop theme and it looks perfect. I hope more themes will be added in the future.