baskerville/bspwm — pull request #117 by fenduru (2014-02-02 04:20:16+00:00)
Title: Added the config option 'tmux_split'.

If true, the focussed window will be split as if in manual mode, and the direction will depend on how much space is remaining (if the focussed window is taller than wide, split down. if wider than tall, split right) instead of the normal automatic mode behavior.