Exciting news! The Battle Axe theme was updated today. The new version also includes an awesome dark version with orange header, dark blue background and a white bar separating them. You can right now see the dark theme live at https://tappara.co. The light-colored version will be set to be the default theme again some time tomorrow so here is a screenshot:
The currently available version in Github is compatible with Discourse 2.1 which our site still uses, but we have a 2.2-compatible version prepared. We will publish it on Github rather soon. Most notably, we will stick with traditional categories column in the desktop Latest view. Our front-end guru @ozzi has put together some slick implementation making use of handlebars. I suppose we will share that customization as a separate theme component.